Materiały źródłowe

• #1 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Fuchs endothelial dystrophy (FED) is a progressive corneal disorder characterized by endothelial cell loss, guttata formation, and stromal edema, resulting in visual impairment. The condition is multifactorial, involving genetic predisposition, environmental influences, and oxidative stress. […] FED inheritance follows an autosomal dominant pattern with variable expressivity and incomplete penetrance. However, nearly half of all cases are sporadic, and many patients are unaware of a family history of the disease. Genetic factors play a significant role, particularly in early-onset FED, which is often familial and linked to autosomal dominant inheritance. Pathogenic mutations in COL8A, located at chromosomal position 1p34.3p32.3 (FCD1), are associated with early-onset FED, as these mutations disrupt the structure of the Descemet membrane.

• #2 Fuchs dystrophy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fuchs-dystrophy/symptoms-causes/syc-20352727

  Fuchs dystrophy is a condition in which fluid builds up in the clear tissue at the front of the eye, called the cornea. This causes your cornea to swell and thicken, leading to glare, blurred or cloudy vision, and eye discomfort. […] The cells lining the inside of the cornea are called endothelial cells. Those cells help maintain a healthy balance of fluid within the cornea and keep the cornea from swelling. In Fuchs dystrophy, the endothelial cells slowly die or do not work well, causing fluid buildup within the cornea. The fluid buildup, called edema, causes thickening of the cornea and blurred vision. […] Fuchs dystrophy tends to run in families. The genetic basis of the disease is complex. Family members can be affected to different degrees or not at all.

• #3 Fuchs endothelial dystrophy: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/fuchs-endothelial-dystrophy/

  Fuchs endothelial dystrophy is a condition that causes vision problems. […] The genetics of Fuchs endothelial dystrophy are unclear. Researchers have identified several genes and regions within a few chromosomes that they think may play a role in the development of Fuchs endothelial dystrophy. […] Fuchs endothelial dystrophy occurs when the endothelial cells die and the cornea becomes swollen with too much fluid. […] It is thought that mutations in genes that are active (expressed) primarily in corneal endothelial cells or surrounding tissue contribute to the death of corneal endothelial cells, resulting in Fuchs endothelial dystrophy. […] Some cases of the early-onset variant of Fuchs endothelial dystrophy are caused by mutations in a gene called COL8A2. […] Mutations in additional, unidentified genes are also thought to be involved in the development of both the early-onset variant of Fuchs endothelial dystrophy and the later onset form of the disorder.

• #4 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Fuchs endothelial dystrophy (FED) is a progressive corneal disorder characterized by endothelial cell loss, guttata formation, and stromal edema, resulting in visual impairment. The condition is multifactorial, involving genetic predisposition, environmental influences, and oxidative stress. […] FED inheritance follows an autosomal dominant pattern with variable expressivity and incomplete penetrance. However, nearly half of all cases are sporadic, and many patients are unaware of a family history of the disease. Genetic factors play a significant role, particularly in early-onset FED, which is often familial and linked to autosomal dominant inheritance. Pathogenic mutations in COL8A, located at chromosomal position 1p34.3p32.3 (FCD1), are associated with early-onset FED, as these mutations disrupt the structure of the Descemet membrane.

• #5 Fuchs dystrophy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fuchs-dystrophy/symptoms-causes/syc-20352727

  Fuchs dystrophy is a condition in which fluid builds up in the clear tissue at the front of the eye, called the cornea. This causes your cornea to swell and thicken, leading to glare, blurred or cloudy vision, and eye discomfort. […] The cells lining the inside of the cornea are called endothelial cells. Those cells help maintain a healthy balance of fluid within the cornea and keep the cornea from swelling. In Fuchs dystrophy, the endothelial cells slowly die or do not work well, causing fluid buildup within the cornea. The fluid buildup, called edema, causes thickening of the cornea and blurred vision. […] Fuchs dystrophy tends to run in families. The genetic basis of the disease is complex. Family members can be affected to different degrees or not at all.

• #6 Fuchs dystrophy: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/007295.htm

  Fuchs dystrophy can be inherited, which means it can be passed down from parents to children. If either of your parents has the disease, you have a 50% chance of developing the condition. […] However, the condition may also occur in people without a known family history of the disease. […] Fuchs dystrophy is more common in women than in men. Vision problems do not appear before age 50 years in most cases. However, a health care provider may be able to see signs of the disease in affected people by their 30s or 40s.

• #7 Fuchs’ Corneal Dystrophy: Causes, Symptoms, Risk & Treatment

  https://www.allaboutvision.com/conditions/fuchs-corneal-dystrophy/

  Fuchs’ dystrophy can have a genetic cause, but it also can occur without a previous family history of the disease. In many cases, the cause is unknown. […] If your mother or father has Fuchs’ dystrophy, you have roughly a 50 percent chance of getting the disease.

• #8 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Fuchs endothelial dystrophy (FED) is a progressive corneal disorder characterized by endothelial cell loss, guttata formation, and stromal edema, resulting in visual impairment. The condition is multifactorial, involving genetic predisposition, environmental influences, and oxidative stress. […] FED inheritance follows an autosomal dominant pattern with variable expressivity and incomplete penetrance. However, nearly half of all cases are sporadic, and many patients are unaware of a family history of the disease. Genetic factors play a significant role, particularly in early-onset FED, which is often familial and linked to autosomal dominant inheritance. Pathogenic mutations in COL8A, located at chromosomal position 1p34.3p32.3 (FCD1), are associated with early-onset FED, as these mutations disrupt the structure of the Descemet membrane.

• #9 Fuchs endothelial dystrophy: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/fuchs-endothelial-dystrophy/

  Fuchs endothelial dystrophy is a condition that causes vision problems. […] The genetics of Fuchs endothelial dystrophy are unclear. Researchers have identified several genes and regions within a few chromosomes that they think may play a role in the development of Fuchs endothelial dystrophy. […] Fuchs endothelial dystrophy occurs when the endothelial cells die and the cornea becomes swollen with too much fluid. […] It is thought that mutations in genes that are active (expressed) primarily in corneal endothelial cells or surrounding tissue contribute to the death of corneal endothelial cells, resulting in Fuchs endothelial dystrophy. […] Some cases of the early-onset variant of Fuchs endothelial dystrophy are caused by mutations in a gene called COL8A2. […] Mutations in additional, unidentified genes are also thought to be involved in the development of both the early-onset variant of Fuchs endothelial dystrophy and the later onset form of the disorder.

• #10 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Fuchs endothelial dystrophy (FED) is a progressive corneal disorder characterized by endothelial cell loss, guttata formation, and stromal edema, resulting in visual impairment. The condition is multifactorial, involving genetic predisposition, environmental influences, and oxidative stress. […] FED inheritance follows an autosomal dominant pattern with variable expressivity and incomplete penetrance. However, nearly half of all cases are sporadic, and many patients are unaware of a family history of the disease. Genetic factors play a significant role, particularly in early-onset FED, which is often familial and linked to autosomal dominant inheritance. Pathogenic mutations in COL8A, located at chromosomal position 1p34.3p32.3 (FCD1), are associated with early-onset FED, as these mutations disrupt the structure of the Descemet membrane.

• #11 Fuchs endothelial dystrophy: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/fuchs-endothelial-dystrophy/

  Fuchs endothelial dystrophy is a condition that causes vision problems. […] The genetics of Fuchs endothelial dystrophy are unclear. Researchers have identified several genes and regions within a few chromosomes that they think may play a role in the development of Fuchs endothelial dystrophy. […] Fuchs endothelial dystrophy occurs when the endothelial cells die and the cornea becomes swollen with too much fluid. […] It is thought that mutations in genes that are active (expressed) primarily in corneal endothelial cells or surrounding tissue contribute to the death of corneal endothelial cells, resulting in Fuchs endothelial dystrophy. […] Some cases of the early-onset variant of Fuchs endothelial dystrophy are caused by mutations in a gene called COL8A2. […] Mutations in additional, unidentified genes are also thought to be involved in the development of both the early-onset variant of Fuchs endothelial dystrophy and the later onset form of the disorder.

• #12 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Fuchs endothelial dystrophy (FED) is a progressive corneal disorder characterized by endothelial cell loss, guttata formation, and stromal edema, resulting in visual impairment. The condition is multifactorial, involving genetic predisposition, environmental influences, and oxidative stress. […] FED inheritance follows an autosomal dominant pattern with variable expressivity and incomplete penetrance. However, nearly half of all cases are sporadic, and many patients are unaware of a family history of the disease. Genetic factors play a significant role, particularly in early-onset FED, which is often familial and linked to autosomal dominant inheritance. Pathogenic mutations in COL8A, located at chromosomal position 1p34.3p32.3 (FCD1), are associated with early-onset FED, as these mutations disrupt the structure of the Descemet membrane.

• #13 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #14 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #15 Neuroscientists investigate the causes of a widespread eye disease

  https://medicalxpress.com/news/2021-01-neuroscientists-widespread-eye-disease.html

  Fuchs’ corneal dystrophy is one of the most common eye diseases diagnosed in almost 5% of the population of Europe aged 40 years or over. It is a hereditary eye disease that causes vision impairment and typically manifests in middle age. […] The Fuchs’ endothelial corneal dystrophy is caused by the CTG trinucleotide repeat expansion in Transcription factor 4 (TCF4). While the repeat length in healthy persons remains below 40, the repeat length in persons with visual impairment is above 40 repeats. […] The results of our study showed that CTG repeat expansion affects the expression of TCF4 in cultured cells. […] The findings of the research help to understand how these (tri)nucleotide repeats can affect development of a disease through changes in gene expression. These results may also contribute to the development of drugs for the treatment of Fuchs’ dystrophy.

• #16 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #17 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #18 Fuchs Endothelial Dystrophy: Background, Pathophysiology, Epidemiology

  https://emedicine.medscape.com/article/1193591-overview

  The IC3D classification applies only to hereditary cases of Fuchs endothelial dystrophy and does not apply if no evidence of inheritance has been established. […] Results of a genomewide association study and replication studies showed that E2-2 protein was associated with Fuchs corneal dystrophy (FCD). […] It was also shown that approximately 5% of Fuchs endothelial dystrophy cases in Chinese patients and 4% of cases in Indian patients can be attributed to mutations in the SLC4A11 gene. […] The first genetic locus for late-onset Fuchs endothelial dystrophy (called FCD1) that was mapped to the 13pTel-13q12.13 interval followed a typical autosomal dominant inheritance pattern.

• #19 Fuchs’ Endothelial Dystrophy – EyeWiki

  https://eyewiki.org/Fuchs%E2%80%99_Endothelial_Dystrophy

  Fuchs endothelial dystrophy is often inherited in an autosomal dominant manner. This means if you have an inherited form of Fuchs endothelial dystrophy there is a 50% chance you will pass it on to your children. […] Spontaneous mutations in the genes for Fuchs dystrophy also can cause new Fuchs dystrophy in a person with no family history. […] The most prevalent genetic risk factor for Fuchs dystrophy is the CTG18.1 trinucleotide repeat expansion in TCF4. […] Environmental risk factors include smoking and body mass index. […] Fuchs dystrophy is rarely seen in people younger than 30 to 40 years of age and seems to present slightly earlier in women. […] Studies conducted among large families with Fuchs’ dystrophy have identified additional genetic variants that segregate with the disease phenotype, meaning that family members affected by the disease carry a genetic variant that does not appear in family members without the disease. […] An early-onset form of Fuchs’ dystrophy is caused by mutations in the COL8A2 gene and is associated with formation of bullous keratopathy, or corneal blisters, within the first few decades of life.

• #20 New Study Quadruples Known Genetic Risk Factors for Fuchs Dystrophy | School of Medicine | School of Medicine | Case Western Reserve University

  https://case.edu/medicine/about/newsroom/our-latest-news/new-study-quadruples-known-genetic-risk-factors-fuchs-dystrophy

  Researchers discovered three novel genetic mutations associated with Fuchs endothelial corneal dystrophy, the most common corneal disorder requiring transplantation. […] Only one gene TCF4 has been successfully associated with Fuchs dystrophy in genetic studies. […] The study revealed three novel variations in the human genome that increase risk of Fuchs dystrophy. The variations KANK4, LAMC1, and ATP1B1 have never before been associated with Fuchs dystrophy. The new study quadruples the number of known genetic risk factors for Fuchs dystrophy, and helps explain its genetic etiology. […] In most individuals with Fuchs Endothelial Corneal Dystrophy (FECD) the cause of the disease is unknown. It was thought that genetics only played a role in those with a family history of FECD. Our results pointed to three new genetic markers for FECD and confirmed the vital role of a previously known marker even among those who did not have a previously known family history of the disease. Thus, our work showed that knowing the genetic architecture is key to understanding this disease, Iyengar said.

• #21 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #22 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #23 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  They tested this theory by exposing a human corneal endothelial cell culture to UVA light. The researchers then discovered a novel pathway where the UVA light causes increased expression of an enzyme called CYP1B1, that jump starts an estrogen metabolite pathway that ultimately causes DNA damage. […] This increased estrogen formation correlated with the sex-dependent differences in disease presentation, they reported. […] That is the mechanism that explains what we have been seeing in our patients, said Dr. Jurkunas. […] Future studies from her group will look at the interplay between genetic and environmental factors to address why certain people, notably women, are more likely to develop FECD than others.

• #24 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  New research findings offer explanation for why this eye disease is found in central cornea and far more common in women. […] The researchers, led by Dr. Ula Jurkunas, have identified a possible mechanism that may explain why the condition only affects certain parts of the eye and is much more common in women. Specifically, they found that exposure to ultraviolet A (UVA) light sets off an enzyme reaction that causes the DNA damage seen in patients with FECD. […] This reaction was much more pronounced in females, as it is driven by the activation of CYP1B1, an enzyme that converts estrogen into metabolites that cause DNA damage. […] This research finally offers an explanation for clinical observations that ophthalmologists have long seen in patients with this complex disorder. […] It is so crucially important to identify modifiable risk factors for genetic diseases like FECD, as it enables clinicians to tell our patients that there might be ways to reduce risk for the disease regardless of genetics.

• #25 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #26 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #27 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #28 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #29 Fuchs’ Endothelial Dystrophy – EyeWiki

  https://eyewiki.org/Fuchs%E2%80%99_Endothelial_Dystrophy

  Fuchs endothelial dystrophy is often inherited in an autosomal dominant manner. This means if you have an inherited form of Fuchs endothelial dystrophy there is a 50% chance you will pass it on to your children. […] Spontaneous mutations in the genes for Fuchs dystrophy also can cause new Fuchs dystrophy in a person with no family history. […] The most prevalent genetic risk factor for Fuchs dystrophy is the CTG18.1 trinucleotide repeat expansion in TCF4. […] Environmental risk factors include smoking and body mass index. […] Fuchs dystrophy is rarely seen in people younger than 30 to 40 years of age and seems to present slightly earlier in women. […] Studies conducted among large families with Fuchs’ dystrophy have identified additional genetic variants that segregate with the disease phenotype, meaning that family members affected by the disease carry a genetic variant that does not appear in family members without the disease. […] An early-onset form of Fuchs’ dystrophy is caused by mutations in the COL8A2 gene and is associated with formation of bullous keratopathy, or corneal blisters, within the first few decades of life.

• #30 Fuchs’ Dystrophy Information, Symptoms

  https://www.naturaleyecare.com/eye-conditions/fuchs-dystrophy/?srsltid=AfmBOorRHPqBWjE0ofHqmHqfN71WJvSjtyQoeEWmt-z7rbI8ZIJ70mpK

  The most common cause of cornea swelling (edema) is due to Fuchs’ dystrophy, occurring most frequently in people ages 30 to 40. […] Fuchs’ dystrophy can be inherited. The genetic basis of the disease is complex. Family members can be affected to varying degrees, although sometimes other members are not affected. Several gene malformation types account for early- versus late-onset Fuch’s. […] Free radicals damage the eyes. They are formed when the ultraviolet and blue light of sunlight passes through the crystalline lens. Free radicals are also natural byproducts of metabolism. These highly reactive chemicals cause oxidation and can destabilize healthy cells in the back of the cornea and the retina as well. Moreover, free radical damage is accelerated by smoking, chronic fatigue, poor diet, chronic stress, and excessive exposure to sunlight and blue light from electronic devices. […] Conditions that cause chronic inflammation such as autoimmune diseases and diabetes particularly, result in increased production of free radicals.

• #31 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #32 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #33 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Hormonal factors may also influence FED progression, as the condition is more prevalent in postmenopausal women, suggesting a link to estrogen deficiency. Estrogen plays a role in maintaining endothelial cell function, and its decline may contribute to disease onset or worsening. The disproportionately higher prevalence of FED in women, estimated at approximately 70%, supports the possibility of an endocrine influence. […] Environmental and lifestyle factors further modulate disease risk. UV radiation exposure induces DNA damage in endothelial cells, accelerating guttata formation. The absence of protective measures, such as sunglasses and blue-light filtering lenses, represents a modifiable risk factor. Additionally, smoking exacerbates oxidative stress, promoting endothelial degeneration, while systemic conditions such as diabetes, hypertension, and metabolic syndrome may contribute to corneal decompensation.

• #34 Fuchs Corneal Dystrophy Risk Factors

  https://www.eyecliniclondon.com/blog/eye-specialist-certain-risk-factors-may-affect-fuchs-corneal-dystrophy-severity/

  Diabetes is a condition that is usually associated with a myriad of eye ailments, so it should come as no surprise that it also exacerbates Fuch’s dystrophy. Diabetic patients are known to have increased corneal thickness, and thus greater risk of corneal swelling. This is why people with diabetes are advised to pay special attention to their eyesight.

• #35 Fuchs’ Dystrophy Information, Symptoms

  https://www.naturaleyecare.com/eye-conditions/fuchs-dystrophy/?srsltid=AfmBOorRHPqBWjE0ofHqmHqfN71WJvSjtyQoeEWmt-z7rbI8ZIJ70mpK

  The most common cause of cornea swelling (edema) is due to Fuchs’ dystrophy, occurring most frequently in people ages 30 to 40. […] Fuchs’ dystrophy can be inherited. The genetic basis of the disease is complex. Family members can be affected to varying degrees, although sometimes other members are not affected. Several gene malformation types account for early- versus late-onset Fuch’s. […] Free radicals damage the eyes. They are formed when the ultraviolet and blue light of sunlight passes through the crystalline lens. Free radicals are also natural byproducts of metabolism. These highly reactive chemicals cause oxidation and can destabilize healthy cells in the back of the cornea and the retina as well. Moreover, free radical damage is accelerated by smoking, chronic fatigue, poor diet, chronic stress, and excessive exposure to sunlight and blue light from electronic devices. […] Conditions that cause chronic inflammation such as autoimmune diseases and diabetes particularly, result in increased production of free radicals.

• #36 Fuchs’ Dystrophy: What It Is, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23438-fuchs-dystrophy

  Fuchs dystrophy causes […] You can inherit Fuchs dystrophy from one of your biological parents during conception (autosomal dominant inheritance). But some cases happen randomly (sporadically) without a history of the condition in your biological line. […] Some things can make Fuchs corneal dystrophy worse, including: Smoking, Being exposed to ultraviolet (UV) light, Having diabetes. […] Certain factors can determine whether you have an increased risk for developing Fuchs dystrophy. These risk factors include: Age. The earliest signs of Fuchs dystrophy may be visible in people in their 30s and 40s. But the disease doesn’t normally affect vision until you turn 50 or older. Sex. Fuchs dystrophy is more common in females. History. It’s also more common in people who have a biological family history of Fuchs dystrophy.

• #37 Fuchs’ Dystrophy: What It Is, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23438-fuchs-dystrophy

  Fuchs dystrophy causes […] You can inherit Fuchs dystrophy from one of your biological parents during conception (autosomal dominant inheritance). But some cases happen randomly (sporadically) without a history of the condition in your biological line. […] Some things can make Fuchs corneal dystrophy worse, including: Smoking, Being exposed to ultraviolet (UV) light, Having diabetes. […] Certain factors can determine whether you have an increased risk for developing Fuchs dystrophy. These risk factors include: Age. The earliest signs of Fuchs dystrophy may be visible in people in their 30s and 40s. But the disease doesn’t normally affect vision until you turn 50 or older. Sex. Fuchs dystrophy is more common in females. History. It’s also more common in people who have a biological family history of Fuchs dystrophy.

• #38 Fuchs’ Dystophy

  https://www.lei.org.au/services/eye-health-information/fuchs-dystrophy/

  Fuchs dystrophy (also called Fuchs endothelial dystrophy) is a disease of the cornea the clear dome-shaped window on the front of your eye that allows light to enter. […] What causes the corneas endothelial cells to die is unknown, but the condition is genetically determined and the main risk factors for developing the condition are: […] Family history Fuchs dystrophy is often inherited […] Age the disease typically starts in adulthood, but often symptoms arent developed until over 50 years of age […] Gender the condition is more common in women than in men.

• #39 Fuchs’ Dystrophy: What It Is, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23438-fuchs-dystrophy

  Fuchs dystrophy causes […] You can inherit Fuchs dystrophy from one of your biological parents during conception (autosomal dominant inheritance). But some cases happen randomly (sporadically) without a history of the condition in your biological line. […] Some things can make Fuchs corneal dystrophy worse, including: Smoking, Being exposed to ultraviolet (UV) light, Having diabetes. […] Certain factors can determine whether you have an increased risk for developing Fuchs dystrophy. These risk factors include: Age. The earliest signs of Fuchs dystrophy may be visible in people in their 30s and 40s. But the disease doesn’t normally affect vision until you turn 50 or older. Sex. Fuchs dystrophy is more common in females. History. It’s also more common in people who have a biological family history of Fuchs dystrophy.

• #40 Fuchs’ Dystophy

  https://www.lei.org.au/services/eye-health-information/fuchs-dystrophy/

  Fuchs dystrophy (also called Fuchs endothelial dystrophy) is a disease of the cornea the clear dome-shaped window on the front of your eye that allows light to enter. […] What causes the corneas endothelial cells to die is unknown, but the condition is genetically determined and the main risk factors for developing the condition are: […] Family history Fuchs dystrophy is often inherited […] Age the disease typically starts in adulthood, but often symptoms arent developed until over 50 years of age […] Gender the condition is more common in women than in men.

• #41 Fuchs’ Dystrophy: What It Is, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23438-fuchs-dystrophy

  Fuchs dystrophy causes […] You can inherit Fuchs dystrophy from one of your biological parents during conception (autosomal dominant inheritance). But some cases happen randomly (sporadically) without a history of the condition in your biological line. […] Some things can make Fuchs corneal dystrophy worse, including: Smoking, Being exposed to ultraviolet (UV) light, Having diabetes. […] Certain factors can determine whether you have an increased risk for developing Fuchs dystrophy. These risk factors include: Age. The earliest signs of Fuchs dystrophy may be visible in people in their 30s and 40s. But the disease doesn’t normally affect vision until you turn 50 or older. Sex. Fuchs dystrophy is more common in females. History. It’s also more common in people who have a biological family history of Fuchs dystrophy.

• #42 Fuchs’ Dystophy

  https://www.lei.org.au/services/eye-health-information/fuchs-dystrophy/

  Fuchs dystrophy (also called Fuchs endothelial dystrophy) is a disease of the cornea the clear dome-shaped window on the front of your eye that allows light to enter. […] What causes the corneas endothelial cells to die is unknown, but the condition is genetically determined and the main risk factors for developing the condition are: […] Family history Fuchs dystrophy is often inherited […] Age the disease typically starts in adulthood, but often symptoms arent developed until over 50 years of age […] Gender the condition is more common in women than in men.

• #43 Fuchs’ Dystrophy: Symptoms, Causes & Treatment – Dr. Chameen Sams

  https://drchameensams.com.au/fuchs-dystrophy-symptoms-causes-treatment/

  Fuchs Endothelial Dystrophy (FED) is a progressive eye disorder that affects the cornea, the transparent, dome-shaped tissue at the front of the eye. […] While FED has a hereditary component, it often occurs sporadically without any family history. The severity and onset of symptoms can vary greatly between individuals. […] Some common risk factors associated with FED include: Age: People with FED typically do not develop symptoms until over the age of 50, though it can appear earlier in some cases. Family History: If someone in your family has been diagnosed with FED, your chances of having it increase. Gender: Women are more likely to develop FED than men, and the condition may also progress more rapidly in females. History of Intraocular Surgery: Previous eye surgeries, such as cataract surgery, may accelerate endothelial cell loss and worsen FED symptoms.

• #44 Fuchs’ Dystrophy: What It Is, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/23438-fuchs-dystrophy

  Fuchs dystrophy causes […] You can inherit Fuchs dystrophy from one of your biological parents during conception (autosomal dominant inheritance). But some cases happen randomly (sporadically) without a history of the condition in your biological line. […] Some things can make Fuchs corneal dystrophy worse, including: Smoking, Being exposed to ultraviolet (UV) light, Having diabetes. […] Certain factors can determine whether you have an increased risk for developing Fuchs dystrophy. These risk factors include: Age. The earliest signs of Fuchs dystrophy may be visible in people in their 30s and 40s. But the disease doesn’t normally affect vision until you turn 50 or older. Sex. Fuchs dystrophy is more common in females. History. It’s also more common in people who have a biological family history of Fuchs dystrophy.

• #45 Fuchs dystrophy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/fuchs-dystrophy/symptoms-causes/syc-20352727

  Fuchs dystrophy is a condition in which fluid builds up in the clear tissue at the front of the eye, called the cornea. This causes your cornea to swell and thicken, leading to glare, blurred or cloudy vision, and eye discomfort. […] The cells lining the inside of the cornea are called endothelial cells. Those cells help maintain a healthy balance of fluid within the cornea and keep the cornea from swelling. In Fuchs dystrophy, the endothelial cells slowly die or do not work well, causing fluid buildup within the cornea. The fluid buildup, called edema, causes thickening of the cornea and blurred vision. […] Fuchs dystrophy tends to run in families. The genetic basis of the disease is complex. Family members can be affected to different degrees or not at all.

• #46 Cornea guttata and Fuchs dystrophy: Causes and treatment

  https://www.barraquer.com/en/news/cornea-guttata-fuchs-dystrophy

  Cornea guttata and Fuchs dystrophy are two conditions that affect the deepest layer of the cornea, the endothelium, whose cells are responsible for maintaining corneal transparency. […] Fuchs dystrophy is a progressive disease that can lead to corneal oedema and significant vision loss. […] Fuchs dystrophy is a genetic condition, and cornea guttata can be an early sign of this dystrophy. […] The loss of these cells reduces the ability of the endothelium to pump excess fluid out of the cornea, leading to swelling of the cornea (corneal oedema).

• #47 Fuchs Endothelial Dystrophy: Background, Pathophysiology, Epidemiology

  https://emedicine.medscape.com/article/1193591-overview

  Fuchs endothelial dystrophy (FED) is characterized by an asymmetrical, bilateral, slowly progressive edema of the cornea in elderly patients. When inherited, the transmission is autosomal dominant. […] The root cause of the condition is a slowly progressive formation of guttate lesions between the corneal endothelium and the Descemet membrane. […] In Fuchs dystrophy, the basic lesion appears to be cornea guttata. […] Endothelial cells may produce these wartlike, mushroom-shaped or anvil-shaped excrescences. […] The increasing cornea guttata thins and progressively destroys the endothelial cells. […] The first genetic defect identified in Fuchs endothelial dystrophy was mutations in the COL8A2 gene, which are associated with early-onset Fuchs endothelial dystrophy. […] Some of the inherited cases of Fuchs endothelial dystrophy are autosomal dominant.

• #48 Fuchs Endothelial Dystrophy: Background, Pathophysiology, Epidemiology

  https://emedicine.medscape.com/article/1193591-overview

  Fuchs endothelial dystrophy (FED) is characterized by an asymmetrical, bilateral, slowly progressive edema of the cornea in elderly patients. When inherited, the transmission is autosomal dominant. […] The root cause of the condition is a slowly progressive formation of guttate lesions between the corneal endothelium and the Descemet membrane. […] In Fuchs dystrophy, the basic lesion appears to be cornea guttata. […] Endothelial cells may produce these wartlike, mushroom-shaped or anvil-shaped excrescences. […] The increasing cornea guttata thins and progressively destroys the endothelial cells. […] The first genetic defect identified in Fuchs endothelial dystrophy was mutations in the COL8A2 gene, which are associated with early-onset Fuchs endothelial dystrophy. […] Some of the inherited cases of Fuchs endothelial dystrophy are autosomal dominant.

• #49 What Are the Causes and Treatment for Fuchs’ Dystrophy?

  https://www.oclvision.com/knowledge-base/fuchs-dystrophy-causes-symptoms-and-treatment-options/

  Fuchs dystrophy is primarily caused by genetic mutations that affect the endothelial cells. Over time, these cells deteriorate faster than they should, leading to a reduction in their number and function. The condition can occur with no family history or may be inherited in some cases. […] Normal ageing results in a gradual loss of endothelial cells, but in Fuchs dystrophy, this loss is accelerated. A healthy individual may have 1500-2500 endothelial cells per square millimetre by age 80, whereas a person with Fuchs dystrophy might have fewer than 500 cells by age 50. Abnormal proteins and small bumps, known as guttata, accumulate on the back of the cornea, further disrupting vision.

• #50 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #51 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #52 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  New research findings offer explanation for why this eye disease is found in central cornea and far more common in women. […] The researchers, led by Dr. Ula Jurkunas, have identified a possible mechanism that may explain why the condition only affects certain parts of the eye and is much more common in women. Specifically, they found that exposure to ultraviolet A (UVA) light sets off an enzyme reaction that causes the DNA damage seen in patients with FECD. […] This reaction was much more pronounced in females, as it is driven by the activation of CYP1B1, an enzyme that converts estrogen into metabolites that cause DNA damage. […] This research finally offers an explanation for clinical observations that ophthalmologists have long seen in patients with this complex disorder. […] It is so crucially important to identify modifiable risk factors for genetic diseases like FECD, as it enables clinicians to tell our patients that there might be ways to reduce risk for the disease regardless of genetics.

• #53 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  They tested this theory by exposing a human corneal endothelial cell culture to UVA light. The researchers then discovered a novel pathway where the UVA light causes increased expression of an enzyme called CYP1B1, that jump starts an estrogen metabolite pathway that ultimately causes DNA damage. […] This increased estrogen formation correlated with the sex-dependent differences in disease presentation, they reported. […] That is the mechanism that explains what we have been seeing in our patients, said Dr. Jurkunas. […] Future studies from her group will look at the interplay between genetic and environmental factors to address why certain people, notably women, are more likely to develop FECD than others.

• #54 Fuchs’ dystrophy – Wikipedia

  https://en.wikipedia.org/wiki/Fuchs%27_dystrophy

  Mutations in collagen VIII, a major component of Descemet’s membrane secreted by endothelial cells, have been linked to the early-onset FECD. […] As a genetically heterogeneous disease, the phenotype, or clinical experience of patients with Fuchs dystrophy may reflect the combination of genetic contributors to the disease.

• #55 Fuchs’ Endothelial Dystrophy – EyeWiki

  https://eyewiki.org/Fuchs%E2%80%99_Endothelial_Dystrophy

  Fuchs endothelial dystrophy is often inherited in an autosomal dominant manner. This means if you have an inherited form of Fuchs endothelial dystrophy there is a 50% chance you will pass it on to your children. […] Spontaneous mutations in the genes for Fuchs dystrophy also can cause new Fuchs dystrophy in a person with no family history. […] The most prevalent genetic risk factor for Fuchs dystrophy is the CTG18.1 trinucleotide repeat expansion in TCF4. […] Environmental risk factors include smoking and body mass index. […] Fuchs dystrophy is rarely seen in people younger than 30 to 40 years of age and seems to present slightly earlier in women. […] Studies conducted among large families with Fuchs’ dystrophy have identified additional genetic variants that segregate with the disease phenotype, meaning that family members affected by the disease carry a genetic variant that does not appear in family members without the disease. […] An early-onset form of Fuchs’ dystrophy is caused by mutations in the COL8A2 gene and is associated with formation of bullous keratopathy, or corneal blisters, within the first few decades of life.

• #56 Fuchs’ Endothelial Dystrophy – EyeWiki

  https://eyewiki.org/Fuchs%E2%80%99_Endothelial_Dystrophy

  Fuchs endothelial dystrophy is often inherited in an autosomal dominant manner. This means if you have an inherited form of Fuchs endothelial dystrophy there is a 50% chance you will pass it on to your children. […] Spontaneous mutations in the genes for Fuchs dystrophy also can cause new Fuchs dystrophy in a person with no family history. […] The most prevalent genetic risk factor for Fuchs dystrophy is the CTG18.1 trinucleotide repeat expansion in TCF4. […] Environmental risk factors include smoking and body mass index. […] Fuchs dystrophy is rarely seen in people younger than 30 to 40 years of age and seems to present slightly earlier in women. […] Studies conducted among large families with Fuchs’ dystrophy have identified additional genetic variants that segregate with the disease phenotype, meaning that family members affected by the disease carry a genetic variant that does not appear in family members without the disease. […] An early-onset form of Fuchs’ dystrophy is caused by mutations in the COL8A2 gene and is associated with formation of bullous keratopathy, or corneal blisters, within the first few decades of life.

• #57 Neuroscientists investigate the causes of a widespread eye disease

  https://medicalxpress.com/news/2021-01-neuroscientists-widespread-eye-disease.html

  Fuchs’ corneal dystrophy is one of the most common eye diseases diagnosed in almost 5% of the population of Europe aged 40 years or over. It is a hereditary eye disease that causes vision impairment and typically manifests in middle age. […] The Fuchs’ endothelial corneal dystrophy is caused by the CTG trinucleotide repeat expansion in Transcription factor 4 (TCF4). While the repeat length in healthy persons remains below 40, the repeat length in persons with visual impairment is above 40 repeats. […] The results of our study showed that CTG repeat expansion affects the expression of TCF4 in cultured cells. […] The findings of the research help to understand how these (tri)nucleotide repeats can affect development of a disease through changes in gene expression. These results may also contribute to the development of drugs for the treatment of Fuchs’ dystrophy.

• #58 Fuchs Endothelial Dystrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545248/

  Late-onset FED exhibits greater genetic heterogeneity, with several mutations contributing to disease development. Repeat expansion mutations in TCF4, which encodes the E2-2 protein, are strongly associated with FED across diverse populations, with the highest prevalence in Caucasians, where the mutation exhibits 80% penetrance. Additionally, mutations in DMPK have been identified as potential genetic contributors to FED. […] Genetic susceptibility plays a major role in FED, particularly TCF4 gene trinucleotide repeat expansions, which are identified in nearly 70% of individuals with late-onset disease, making it a strong genetic marker. Other mutations, including ZEB1 and COL8A2, have been implicated in early-onset cases. […] Endothelial cells in FED exhibit increased susceptibility to oxidative stress, leading to progressive endothelial apoptosis. Reduced antioxidant defense mechanisms further compromise cell survival, while mitochondrial dysfunction depletes energy reserves, impairing sodium-potassium pump activity and contributing to corneal edema.

• #59

  https://www.cornea.org/Learning-Center/Conditions-Research-Areas/Fuchs-Dystrophy.aspx

  Fuchs (fooks) corneal dystrophy is a hereditary eye disease with symptoms that often become noticeable after the age of 50. […] Fuchs dystrophy exhibits dominant inheritance, which means that roughly half of an affected persons offspring may inherit it. […] The initial findings in Fuchs dystrophy are corneal guttata, which appear as dark spots on the corneal endothelium. […] As the condition progresses the critical endothelial cells start to die off. […] The normal function of these cells is to pump water out of the cornea. […] As they decrease in number and fail to function properly, fluid builds up in the cornea causing it to swell and become cloudy.

• #60

  https://www.cornea.org/Learning-Center/Conditions-Research-Areas/Fuchs-Dystrophy.aspx

  Fuchs (fooks) corneal dystrophy is a hereditary eye disease with symptoms that often become noticeable after the age of 50. […] Fuchs dystrophy exhibits dominant inheritance, which means that roughly half of an affected persons offspring may inherit it. […] The initial findings in Fuchs dystrophy are corneal guttata, which appear as dark spots on the corneal endothelium. […] As the condition progresses the critical endothelial cells start to die off. […] The normal function of these cells is to pump water out of the cornea. […] As they decrease in number and fail to function properly, fluid builds up in the cornea causing it to swell and become cloudy.

• #61 Cornea guttata and Fuchs dystrophy: Causes and treatment

  https://www.barraquer.com/en/news/cornea-guttata-fuchs-dystrophy

  Cornea guttata and Fuchs dystrophy are two conditions that affect the deepest layer of the cornea, the endothelium, whose cells are responsible for maintaining corneal transparency. […] Fuchs dystrophy is a progressive disease that can lead to corneal oedema and significant vision loss. […] Fuchs dystrophy is a genetic condition, and cornea guttata can be an early sign of this dystrophy. […] The loss of these cells reduces the ability of the endothelium to pump excess fluid out of the cornea, leading to swelling of the cornea (corneal oedema).

• #62 Fuch’s endothelial corneal dystrophy | RNIB

  https://www.rnib.org.uk/your-eyes/eye-conditions-az/fuchs-endothelial-corneal-dystrophy/

  FECD can sometimes lead to deposits called guttata appearing at the back of the cornea. […] If your cornea is swollen, you may also develop blisters on its surface. These are known as epithelial 'bullae.’ […] If the changes to your sight are starting to cause difficulties in your day-to-day activities, your ophthalmologist may recommend that you have a corneal transplant. Corneal transplants can successfully treat FECD. […] The common types of corneal transplant procedures to treat FECD only replace the innermost layers of the cornea. […] Both endothelial keratoplasty and penetrating keratoplasty procedures work very well in FECD as the condition does not come back in the transplant. […] Although rejection is a risk and can affect about one in five of all transplants, the risk of rejection is reduced by using steroid eye drops.

• #63 Fuchs’ dystrophy | Discover causes, symptoms & treatments | Fight for Sight

  https://www.fightforsight.org.uk/a-z-eye-conditions/fuchs-dystrophy/

  Fuchs’ dystrophy can be caused by an inherited genetic fault but may also happen in people with no family history of the condition. […] Research on Fuchs’ dystrophy aims to learn more about how and why the corneas inner layer stops working and the links to genetic and environmental factors. […] One of our research projects at University College London is looking at genetic data in people with Fuchs’ dystrophy, to understand how many people with a certain genetic fault develop the condition and how it changes as it is passed from parent to child.

• #64 Fuchs’ dystrophy | Discover causes, symptoms & treatments | Fight for Sight

  https://www.fightforsight.org.uk/a-z-eye-conditions/fuchs-dystrophy/

  Fuchs’ dystrophy can be caused by an inherited genetic fault but may also happen in people with no family history of the condition. […] Research on Fuchs’ dystrophy aims to learn more about how and why the corneas inner layer stops working and the links to genetic and environmental factors. […] One of our research projects at University College London is looking at genetic data in people with Fuchs’ dystrophy, to understand how many people with a certain genetic fault develop the condition and how it changes as it is passed from parent to child.

• #65 New study quadruples known genetic risk factors for Fuchs dystrophy | ScienceDaily

  https://www.sciencedaily.com/releases/2017/04/170411135846.htm

  Researchers discovered three novel genetic mutations associated with Fuchs endothelial corneal dystrophy, the most common corneal disorder requiring transplantation. […] The study revealed three novel variations in the human genome that increase risk of Fuchs dystrophy. The variations — KANK4, LAMC1, and ATP1B1 — have never before been associated with Fuchs dystrophy. The new study quadruples the number of known genetic risk factors for Fuchs dystrophy, and helps explain its genetic etiology. […] „In most individuals with Fuchs Endothelial Corneal Dystrophy (FECD) the cause of the disease is unknown. It was thought that genetics only played a role in those with a family history of FECD. Our results pointed to three new genetic markers for FECD and confirmed the vital role of a previously known marker even among those who did not have a previously known family history of the disease. Thus, our work showed that knowing the genetic architecture is key to understanding this disease,” Iyengar said.

• #66 An Introduction to Fuchs’ Dystrophy for Patients | The Corneal Dystrophy Foundation

  https://www.cornealdystrophyfoundation.org/an-introduction-to-fuchs-dystrophy-for-patients/

  Fuchs Dystrophy can be inherited, but not always. Family members can often be affected, although sometimes not at all. […] The genetic cause of the disease is complex there are many genetic abnormalities thought to be responsible for Fuchs dystrophy, including unknown genetic mutations. There are also variations in Fuchs dystrophy thought to be related to different genetic causes of the disease. For example, the condition seems to be distinctly different in certain parts of Asia compared to the United States. […] Researchers in Japan, Europe, and the United States are developing a therapy for Fuchs that does not involve a corneal transplant from a donor. The ultimate goal of the procedure is to genetically engineer normal endothelial cells derived from your own body in a laboratory, then to replicate, or culture, the cells that have been cured of the disease to grow replacement endothelial cells for your cornea. Genetically engineered endothelial cells would either be injected into the eye or surgically transplanted using techniques similar to DMEK or surgeries that have yet to be developed.

• #67 An Introduction to Fuchs’ Dystrophy for Patients | The Corneal Dystrophy Foundation

  https://www.cornealdystrophyfoundation.org/an-introduction-to-fuchs-dystrophy-for-patients/

  The final frontier in the treatment of Fuchs Dystrophy would be to cure the disease without any form of surgery. As our understanding of the genetic basis of Fuchs improves, in conjunction with scientific advances in genetic therapy across all fields of medicine, it may one day be possible to treat Fuchs with medications that deliver a genetic cure for the disease.

• #68 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  New research findings offer explanation for why this eye disease is found in central cornea and far more common in women. […] The researchers, led by Dr. Ula Jurkunas, have identified a possible mechanism that may explain why the condition only affects certain parts of the eye and is much more common in women. Specifically, they found that exposure to ultraviolet A (UVA) light sets off an enzyme reaction that causes the DNA damage seen in patients with FECD. […] This reaction was much more pronounced in females, as it is driven by the activation of CYP1B1, an enzyme that converts estrogen into metabolites that cause DNA damage. […] This research finally offers an explanation for clinical observations that ophthalmologists have long seen in patients with this complex disorder. […] It is so crucially important to identify modifiable risk factors for genetic diseases like FECD, as it enables clinicians to tell our patients that there might be ways to reduce risk for the disease regardless of genetics.

• #69 Ultraviolet Light Exposure Identified as Factor Linked to Eye Disease Fuchs’ Endothelial Corneal Dystrophy – FOCUS

  https://focus.masseyeandear.org/ultraviolet-light-exposure-identified-as-factor-linked-to-eye-disease-fuchs-endothelial-corneal-dystrophy/

  New research findings offer explanation for why this eye disease is found in central cornea and far more common in women. […] The researchers, led by Dr. Ula Jurkunas, have identified a possible mechanism that may explain why the condition only affects certain parts of the eye and is much more common in women. Specifically, they found that exposure to ultraviolet A (UVA) light sets off an enzyme reaction that causes the DNA damage seen in patients with FECD. […] This reaction was much more pronounced in females, as it is driven by the activation of CYP1B1, an enzyme that converts estrogen into metabolites that cause DNA damage. […] This research finally offers an explanation for clinical observations that ophthalmologists have long seen in patients with this complex disorder. […] It is so crucially important to identify modifiable risk factors for genetic diseases like FECD, as it enables clinicians to tell our patients that there might be ways to reduce risk for the disease regardless of genetics.

• #70 Neuroscientists investigate the causes of a widespread eye disease

  https://medicalxpress.com/news/2021-01-neuroscientists-widespread-eye-disease.html

  As a next step, we want to determine when and for how long changes in TCF4 level occur in people who later develop Fuchs’ endothelial corneal dystrophy. This would make it possible to develop a treatment strategy that would enable regulation of TCF4 levels in the corneal endothelium and thus prevent the disease.

• #71 The Future of Fuchs’ Dystrophy

  https://news.cuanschutz.edu/ophthalmology/the-future-of-fuchs-dystrophy

  Fuchs dystrophy, an inherited disease that affects the cornea the clear covering of the eye. The disease causes cell death in the endothelium, the innermost layer of the cornea. Although death of these cells is a normal part of aging, Fuchs accelerates the process and causes vision impairment and discomfort. […] Fuchs is a progressive disease, and the age of onset typically occurs between age 40 and 50. It is a genetic eye condition, affecting about 4% of Americans over age 40. Women are three times more likely than men to develop Fuchs dystrophy. […] With time, I suspect that we will move away from corneal transplantation for this disease and shift toward newer medications that can facilitate healthy endothelial cell regeneration as well as injection of cultured endothelial cells into the eye.

• #72

  https://www.aao.org/eye-health/diseases/what-is-fuchs-dystrophy

  Fuchs’ dystrophy is a disease of the cornea. It is when cells in the corneal endothelium gradually die off. […] Family history of Fuchs dystrophy also increases your risk of getting it. […] There is no cure for Fuchs dystrophy. However, you can control vision problems from corneal swelling. Your treatment depends on how Fuchs dystrophy affects your eyes cells.

• #73

  https://www.aao.org/eye-health/diseases/what-is-fuchs-dystrophy

  Fuchs’ dystrophy is a disease of the cornea. It is when cells in the corneal endothelium gradually die off. […] Family history of Fuchs dystrophy also increases your risk of getting it. […] There is no cure for Fuchs dystrophy. However, you can control vision problems from corneal swelling. Your treatment depends on how Fuchs dystrophy affects your eyes cells.

• #74 Fuchs’ Corneal Dystrophy Care | Randolph and Wayne Experts

  https://advancedeyenj.com/services/corneal-services/fuchs-corneal-dystrophy/

  Fuchs Corneal Dystrophy is a progressive, degenerative condition affecting the innermost layer of the cornea—the endothelium. […] The hallmark of Fuchs Corneal Dystrophy is the loss and dysfunction of corneal endothelial cells. […] In Fuchs, as these cells become less efficient and begin to disappear, abnormal deposits known as guttae form on Descemet’s membrane, the basement layer of the endothelium. […] Fuchs Corneal Dystrophy (FCD) is a progressive eye disease that causes swelling (edema) in the cornea, leading to blurry vision, discomfort, and eventual vision loss if untreated. […] While there is no outright cure, a variety of treatments ranging from symptom management to surgical interventions can help preserve vision and improve quality of life. […] As Fuchs dystrophy progresses, surgical options may become necessary. […] A newer, non-transplant alternative called Descemet Stripping Only (DSO) is gaining attention. […] Early research suggests that carefully selected patients can regain excellent vision without needing a transplant, making this a promising option for some.

• #75 Fuchs’ Corneal Dystrophy Care | Randolph and Wayne Experts

  https://advancedeyenj.com/services/corneal-services/fuchs-corneal-dystrophy/

  Fuchs Corneal Dystrophy is a progressive, degenerative condition affecting the innermost layer of the cornea—the endothelium. […] The hallmark of Fuchs Corneal Dystrophy is the loss and dysfunction of corneal endothelial cells. […] In Fuchs, as these cells become less efficient and begin to disappear, abnormal deposits known as guttae form on Descemet’s membrane, the basement layer of the endothelium. […] Fuchs Corneal Dystrophy (FCD) is a progressive eye disease that causes swelling (edema) in the cornea, leading to blurry vision, discomfort, and eventual vision loss if untreated. […] While there is no outright cure, a variety of treatments ranging from symptom management to surgical interventions can help preserve vision and improve quality of life. […] As Fuchs dystrophy progresses, surgical options may become necessary. […] A newer, non-transplant alternative called Descemet Stripping Only (DSO) is gaining attention. […] Early research suggests that carefully selected patients can regain excellent vision without needing a transplant, making this a promising option for some.

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