Materiały źródłowe

• #1 Hyperopia

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

  Hyperopia is usually inherited. It occurs when your eye is shorter than normal or has a cornea (the clear front surface of your eye that passes light to the retina) that is too flat. […] As a result, light rays focus beyond your retina instead of directly onto it. […] Many children are born longsighted but dont experience blurry vision because their lens inside the eye can change shape and bend the light rays and place them directly on the retina. […] As you get older, the hyperopia will start to affect the near vision first, then the lens in your eye starts to stiffen and your distance vision will also become blurry.

• #2 Long-sightedness

  https://www.nhs.uk/conditions/long-sightedness/

  Long-sightedness happens when the eyes cannot focus properly. […] This can be because of: the shape of your eye, the shape of the front layer of your eye (the cornea), the lens inside your eye has become stiffer, usually due to aging (presbyopia). […] Long-sightedness is often passed on from your parents and cannot be prevented. […] It can also be caused by other conditions like diabetes and eye cancer, but this is very rare.

• #3 Long-sightedness (hyperopia) | healthdirect

  https://www.healthdirect.gov.au/long-sightedness-hyperopia

  Long-sightedness (also known as hyperopia) is a very common eye problem. It can be hard to detect. If you are long-sighted close objects can appear blurry. […] The size and shape of your eye is the main cause of long-sightedness. […] In most people, the size and shape of your eyes causes long sightedness. The light rays from close objects focus behind, rather than on, the retina when your eye is resting. […] As you age, the eye’s lens becomes less flexible causing long-sightedness. This is why older people often need reading glasses. […] You have a slightly higher chance of being long-sighted if either of your parents is long-sighted.

• #4 What is Hyperopia? | Symptoms and Causes | ACUVUE® UAE

  https://www.acuvue.com/en-me/eye-health/hyperopia/

  Hyperopia or long sightedness occurs when the eye is too short from front to back, or the corneas curve is not powerful enough for the eye. Light is focused behind the retina instead of on it, resulting in blurred vision. […] Some children are born farsighted, and their vision can correct itself as their eyes develop, however, they should be examined by an Eye Care professional to ensure that this is the case and it isnt causing the child any other problems. […] Adults can also become farsighted, particularly as they approach middle age. Long sightedness shouldnt be confused with presbyopia, which makes focussing at near difficult because the lens inside our eye becomes less flexible with age and cannot focus for close distances.

• #5 Hyperopia – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK560716/

  Hyperopia is a very common refractive condition of childhood and adults. Proper assessment and treatment can prevent multiple complications in the future. Adult hyperopia is associated with some complications which must be assessed at regular interval. This activity reviews the evaluation and management of hyperopia with the prevention of long term complications. […] Identify the etiology of hyperopia and their associations. […] Conventionally the hyperopia is etiologically classified into: […] Axial hyperopia (most common – simple hyperopia): It is due to anterior-posterior axial shortening of the eyeball. Genetic predisposition plays an important role. Retinal edema can cause a hyperopic shift. 1 mm decrease in axial length leads to 3 diopters of hyperopia. […] No unanimous causative factor is identified to date. Though sporadic, few genetic factors have been identified in association with hyperopia. […] The following are a few identified conditions leading to hyperopia: […] Maternal smoking during pregnancy positively correlates with hyperopia in the child. […] No definite cause of hyperopia is identified to date. Genetic predisposition, along with family history, plays an important role.

• #6 Farsightedness – Wikipedia

  https://en.wikipedia.org/wiki/Farsightedness

  Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred. This blur is due to incoming light being focused behind, instead of on, the retina due to insufficient accommodation by the lens. […] There are many causes for this condition. It may occur when the axial length of eyeball is too short or if the lens or cornea is flatter than normal. Changes in refractive index of lens, alterations in position of the lens or absence of lens are the other main causes. […] Aetiologically, causes of hypermetropia can be classified as: Axial: Axial hypermetropia occur when the axial length of eyeball is too short. About 1 mm decrease in axial length cause 3 diopters of hypermetropia. One condition that cause axial hypermetropia is nanophthalmos.

• #7 Farsightedness – Wikipedia

  https://en.wikipedia.org/wiki/Farsightedness

  Curvatural: Curvatural hypermetropia occur when curvature of lens or cornea is flatter than normal. About 1 mm increase in radius of curvature results in 6 diopters of hypermetropia. Cornea is flatter in microcornea and cornea plana. […] Index: Age related changes in refractive index (cortical sclerosis) can cause hypermetropia. Another cause of index hypermetropia is diabetes. […] Positional: Positional hypermetropia occur due to posterior dislocation of Lens or IOL. […] Consecutive: Consecutive hypermetropia occur due to surgical over correction of myopia or surgical under correction in cataract surgery. […] Functional: Functional hypermetropia results from paralysis of accommodation as seen in internal ophthalmoplegia, CN III palsy etc. […] Absence of lens: Congenital or acquired aphakia cause high degree hypermetropia. […] Far-sightedness is often present from birth, but children have a very flexible eye lens, which helps to compensate. In rare instances, hyperopia can be due to diabetes, as well as problems with the blood vessels in the retina.

• #8 Long-sightedness: definition & cause – Helsana

  https://www.helsana.ch/en/blog/body/knowledge-of-the-body/long-sightedness.html

  Long-sightedness (also known as hyperopia or far-sightedness) means not being able to see small print or close objects clearly, while objects in the distance are very clear. […] Long-sightedness is caused by the focal point of light falling behind the retina instead of on the retina, as would be the case in a healthy eye. Possible reasons include the following: The eyeball is slightly shorter than is the case for people with normal vision (axial hyperopia). […] In rare cases, the lens and cornea cannot refract light strongly enough (refractive hyperopia).

• #9 What Is Farsightedness? – Optometrists.org

  https://www.optometrists.org/childrens-vision/guide-to-pediatric-eye-conditions/what-is-long-sightedness/

  Farsightedness, also known as long-sightedness or hyperopia, causes near objects or images to appear blurry. […] Hyperopia can occur as a result of any of the following reasons: The eyeball is shorter than normal, The cornea is less curved than normal, The lens is thinner than normal. […] Hyperopia is an inherited vision condition that can develop in childhood, or later on in life. Although most cases of hyperopia develop because it runs in the family, complications in utero or early childhood such as illness or trauma to the eye, can increase the risk of hyperopia. […] Hyperopia is a common vision condition that can affect a child’s near vision acuity, and cause both academic and behavioral challenges.

• #10 What is Long Sightedness? – Cathedral Eye Clinic

  https://cathedraleye.com/what-is-long-sightedness/

  Long-sightedness causes are not definite nor singular. In terms of eye size and shape, the following features are widely noted in cases of patients suffering from hyperopia: […] The size and shape of the eyeball may be shorter than the normal eye […] The cornea may be too flat in dimension, its curvature too flat […] An inability of the lens to focus according to light. […] Whilst long-sightedness causes are unclear, several factors are believed to contribute to the onset or worsening of the condition. These factors include: […] Age degeneration (age-related long-sightedness is referred to as presbyopia, and is especially common in people in their mid-forties) […] Genetics (long-sightedness is frequently inherited from parents) […] A stiffening of the eyes lenses over time.

• #11 Hypermetropia (long-sightedness) | What it is, symptoms and treatment – Barraquer

  https://www.barraquer.com/en/pathology/hypermetropia-long-sightedness

  Long-sighted people cannot see as well up close as they can far away. This is the opposite of myopia (short-sightedness). […] In hypermetropia, the eye is shorter than an emmetropic eye, therefore images of close object are focussed behind the retina. This causes long-sightedness. […] Genetic factors play a very important part. If one parent is long-sighted, then there is an increased risk that the children will be too. The risk is even greater if both parents are long-sighted. […] Long-sightedness is generally hereditary. If one parent is long-sighted, then there is an increased risk that the children will be too. The same thing happens with short-sightedness. The risk is even greater if both parents are long-sighted.

• #12 Presbyopia (Long-Sightedness): Causes, Symptoms, and Treatment – Skipper EyeQ

  https://skippereyeq.com/presbyopia-long-sight-causes-symptoms-and-treatment/

  While aging is the main cause of presbyopia (long-sightedness), other factors can influence its onset and severity: Genetics: If your parents experienced presbyopia (long-sightedness), you are more likely to develop it at a similar age. […] Medical Conditions: Certain health conditions, such as diabetes and cardiovascular diseases, can affect the onset and progression of presbyopia (long-sightedness). […] Medications: Some medications, like antidepressants and diuretics, can affect your vision and potentially accelerate the development of presbyopia (long-sightedness). […] Lifestyle Factors: Prolonged exposure to close-up tasks and poor lighting conditions can strain the eyes and may influence the progression of presbyopia (long-sightedness). […] Understanding these causes can help manage presbyopia (long-sightedness) effectively and maintain clear vision as you age.

• #12 Presbyopia (Long-Sightedness): Causes, Symptoms, and Treatment – Skipper EyeQ

  https://skippereyeq.com/presbyopia-long-sight-causes-symptoms-and-treatment/

  Presbyopia (long-sightedness) is a natural result of aging, and its primary cause is the gradual loss of flexibility in the lens of the eye. As we age, the proteins within the lens undergo changes that make the lens harder and less elastic. This loss of elasticity makes it difficult for the lens to change its shape to focus on close objects. […] Another contributing factor is the weakening of the ciliary muscles, which help the lens to focus. Over time, these muscles lose their strength, further reducing the eye’s ability to focus on nearby objects. […] Another important factor contributing to presbyopia (long-sightedness) is the reduction in pupil size as we age. The pupil is the black circular opening in the center of the iris that allows light to enter the eye. With age, the muscles that control the pupil size become less responsive, causing the pupil to become smaller and less able to dilate effectively in low-light conditions. This reduced ability to adjust the size of the pupil limits the amount of light entering the eye, which can further exacerbate the difficulties in focusing on close objects.

• #13 Farsightedness: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/farsightedness/

  Farsightedness is a complex condition. Multiple genetic variations, each with a small effect, likely influence whether a person is farsighted. Few genes associated with the condition have been identified, and none of the identified genes appears to play a major role in the development of farsightedness. At least some of the genes that influence farsightedness play roles in eye development, particularly in determining the length of the eyeball from front to back (also known as the axial length). It is possible that environmental factors also contribute to a person’s risk of being farsighted, but these have not been well-studied. […] In many farsighted people, this vision problem is not part of a larger genetic syndrome. However, farsightedness (especially high hyperopia) can be a feature of other disorders with a genetic cause. Genetic conditions with farsightedness as a characteristic feature include microphthalmia, achromatopsia, aniridia, Leber congenital amaurosis, X-linked juvenile retinoschisis, Senior-Løken syndrome, Gorlin-Chaudhry-Moss syndrome, Down syndrome, and fragile X syndrome. […] Farsightedness is a complex condition that usually does not have a clear pattern of inheritance. The risk of developing this condition is greater for first-degree relatives of affected individuals (such as siblings or children) as compared to the general public.

• #14 Long Sightedness – Know Risk Factors Of It! – By Dr. Piyush Kapur | Lybrate

  https://www.lybrate.com/topic/long-sightedness-know-risk-factors-of-it/7a959a0a626fbf84a39fd9a115c4b780

  Long-sightedness can be caused by a number of factors. Some of these are: […] Structural problems with the eye […] Some people are born with structural problems. This is one of the leading causes of long-sightedness. These structural conditions include: 1. A cornea that is not steep enough 2. A short eyeball 3. A flattened lens 4. A thicker than normal lens […] Age Long-sightedness rarely affects children. This is a condition that becomes noticeable after the age of 40 in most cases. With age, the lenses in the eyes become stiffer and do not curve normally. This is known as presbyopia. […] Genetics As with myopia, hypermetropia is also triggered by genetic faults. If someone in your family suffers from this then chances are that you will too. However, the specific genes that transfer this condition from one generation to the next have not been discovered as yet. […] Underlying conditions Long-sightedness is also triggered by underlying conditions such as diabetes, underdevelopment of a baby’s eye during pregnancy, orbital tumours and problems with the blood vessels in the retina.

• #15 Hyperopia (Farsightedness): Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/hyperopia-farsightedness

  Hyperopia (farsightedness) is a common eye condition that may cause you to have blurry close-up vision. […] The shape of your eye determines whether you have some degree of hyperopia. Factors include the length of your eye from front to back (axial length) and the curvature of your cornea (the front window of your eye). […] Common causes of hyperopia include: Having an eyeball thats relatively short (from front to back). Healthcare providers call this decreased axial length. […] Having a cornea thats flatter than expected. […] Researchers believe hyperopia has a genetic component. This means the genes you inherit from your biological parents may impact whether you have hyperopia. […] Some people experience a high degree of hyperopia as part of a genetic disorder, such as: Achromatopsia. […] Hyperopia (farsightedness) is an example of a refractive error. Refractive errors are changes to your vision that occur due to problems with how your eye bends light.

• #16 Presbyopia (Long Sight): Causes, Symptoms, and Treatment

  https://patient.info/eye-care/long-sight-hypermetropia/age-related-long-sight-presbyopia

  Presbyopia is a long-sight (hypermetropia) eye condition, caused by age. […] Presbyopia is a refractive error (see below) caused by normal ageing. […] People who have a job that requires a lot of close-up work and people who live and work in a hot climate with lots of ultraviolet sunlight exposure are also at higher risk of premature age-related long sight.

• #17 Presbyopia – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/presbyopia/symptoms-causes/syc-20363328

  Presbyopia is caused by a hardening of the lens of your eye, which occurs with aging. […] As your lens becomes less flexible, it can no longer change shape to focus on close-up images. […] Age is the greatest risk factor for presbyopia. Almost everyone experiences some degree of presbyopia after age 40. […] Being farsighted or having certain diseases such as diabetes, multiple sclerosis or cardiovascular diseases can increase your risk of premature presbyopia, which is presbyopia in people younger than 40. […] Certain drugs are associated with premature presbyopic symptoms, including antidepressants, antihistamines and diuretics.

• #18 Long-sightedness

  https://contenidos.bupasalud.com/en/health-and-wellness/bupa-life/long-sightedness

  You can’t prevent presbyopia as it’s a natural part of the ageing process. Almost everyone will develop presbyopia eventually. […] Presbyopia isn’t a disease it’s a normal expected change that happens to almost everyone sooner or later. The lens of your eye begins to stiffen and lose elasticity around the age of 40 these changes are usually completed by the time you’re 60.

• #18 Long-sightedness

  https://contenidos.bupasalud.com/en/health-and-wellness/bupa-life/long-sightedness

  Long-sightedness is a common vision problem, which means that people can’t focus on close objects so they look blurred. Long-sightedness is known medically as hyperopia or hypermetropia. Another name for it is far-sightedness. […] Long-sightedness is a refractive error. This means there is an error in the way that your eye focuses light rays. If you’re long-sighted, light rays are focused behind your retina. This may be because your eyeball is too short, your cornea isn’t curved enough or your lens isn’t thick enough. […] A common cause of long-sightedness is ageing (in which case, it’s called presbyopia). Changes to the lens in your eye typically begin around the age of 40 and are completed by the time you are 60. […] Presbyopia is also known as age-related long-sightedness. As you get older, your lenses slowly lose their flexibility, becoming stiffer and less elastic. Eventually, light rays from near objects no longer focus on your retina and you become long-sighted. It happens to almost everyone, regardless of whether you already wear glasses or contact lenses or not.

• #19 Long-sightedness with ageing (presbyopia)

  https://info.health.nz/conditions-treatments/eyes/long-sightedness-with-ageing-presbyopia

  Presbyopia, or long-sightedness that begins in middle age, makes it hard to focus on things that are up close. […] It is different from hyperopia, which makes it difficult for younger people to focus on things up close. […] As we get older, the lenses in our eyes thicken and slowly lose their flexibility, making it difficult to see things that are very close. […] The process that causes presbyopia starts in adolescence, and we cannot stop it.

• #20 Long-Sightedness – London Health

  https://www.londonhealth.co.uk/eye-conditions/long-sightedness/

  Also known as hyperopia, long-sightedness is a common sight problem that affects over 13 percent of people aged between 20 and 25 and over 17 percent of people aged between 40 and 45. […] Hyperopia occurs when the eye ball is too short in comparison to the focus generated by the cornea and lens; this causes the rays of light to travel to the retina at the back of the eye before the rays are curved by the lens and cornea; this means the images are not focused properly and become blurred. […] Most cases of hyperopia occur as a result of genetics and family history; however, the gene which causes this has not yet been identified. […] In rare cases, long-sightedness may also be caused by diabetes, tumours, fovea hypoplasia (this condition affects the blood vessels surrounding the retina) and microphthalmia (this is a condition which results from a lack of development of the eye during pregnancy, it is also known as small eye syndrome).

• #21 What causes hyperopia? – Custom Vision Clinic

  https://customvisionclinic.com/causes-hyperopia-vp/

  Well, really its part of the biological variation we see in every parameter of biology. […] We know from the study of aboriginal populations that if people are living an outdoor hunter-gatherer type of lifestyle, in that population all the individuals have great distance vision and some may be long-sighted. […] So the long-sightedness forms part of that continuum of the normal variation in biology. […] As soon as you take a population like that, make all the young people go to school and make them start to read all the time, about forty per cent will become short-sighted. […] So, clearly again, there are some genetic factors making these individuals susceptible to developing short-sightedness. […] Changing that environment theyre living in and the way in which theyre stimulating their visual system particularly earlier in life can have his huge effect in how the structure of their eye develops and changes over the course of their early life or even adult life.

• #22 Long-sightedness (hyperopia)

  https://info.health.nz/conditions-treatments/eyes/long-sightedness-hyperopia

  Long-sightedness usually happens because your eyeballs are smaller than normal, or the front surface of your eye (the cornea) is too flat. This means that when your eyes are fully relaxed, light focuses behind the retinas rather than on them. This causes blurry vision. […] Long-sightedness is usually inherited and happens regardless of the amount of close work you do, how much you rest or exercise and what vitamin supplements you take. […] All treatments for hyperopia adjust your focus precisely onto your retina (rather than behind it).

• #23

  https://www.health-panel.co.uk/diseases/long-sightedness/

  Long-sightedness is caused by an astigmatism in the eye, which means that the focus of the eye is placed at the back of the retina, rather than its usual place in the front of the retina. This causes blurred visualization of objects placed near the eyes. The condition is caused by the eye being too short in terms of the optical strength. […] If you suffer from long-sightedness, your cornea and lens will not deflect the light enough for the light to collect on the retina. Instead, it will accumulate behind the retina, causing the light to become blurry. […] The eye lens may try to compensate by making the lens contract, but eventually this will cause problems, such as headache and fatigue. This compensatory mechanism by the lens is called accommodation, and the ability to accommodate is slowly lost with age. Eventually, the need for accommodation exceeds what the lens can handle, which is why glasses are needed in order to correct the long-sightedness.

• #24 Long-sightedness – hyperopia – Alex Shortt | London Eye Surgeon

  https://www.alexshortt.co.uk/long-sightedness-hyperopia/

  Long-sightedness is a result of your eye being abnormally short. […] Long-sightedness occurs because of a combination of genetic factors and a mismatch between the power of the cornea and the length of the eye. Long-sighted patients typically have shorter than average eyes. […] Long-sighted patients have blurred vision because the focusing power of their eye is not strong enough to focus light on the retina. As they try to look at closer objects, they need more focus, but the object gets more blurred. […] Eyestrain, squinting and headaches all occur when the eye tries to compensate. It does this by putting extra strain on its muscle focusing mechanism. […] This excessive strain can give rise to these symptoms. These become even more problematic for long-sighted patients from age 40 onwards when the onset of presbyopia begins.

• #25 Hyperopia – EyeWiki

  https://eyewiki.org/Hyperopia

  Hyperopia is also known as farsightedness or hypermetropia. It is an ocular condition in which the refracting power of the eye causes light rays entering the eye to have a focal point that is posterior to the retina while accommodation is maintained in a state of relaxation. […] Significant hyperopia is defined as any degree of hyperopia sufficient to cause symptoms prompting clinical attention. Hyperopia may be classified by structure and/or function of the eye. Simple hyperopia is due to decreased axial length or decreased converging power of cornea, lens, and/or media (flattened cornea/decreased curvature, increased thickness of lens, etc.). […] Pathologic hyperopia is due to atypical development, trauma, or disease of the eye (i.e. cataract, microphthalmia, nanophthalmia, aniridia, etc.). […] Functional hyperopia is due to paralysis of accommodation. […] Decreased axial length is the most common etiology for hyperopia. […] Hyperopia is associated with maternal smoking during pregnancy, prematurity, and low birth weight. […] Hyperopia may also be associated with diabetes mellitus.

• #26 What is Farsighted? | Hypermetropia definition :: Eye Health Central

  https://www.contactlensesplus.com/education/what-is-long-farsightedness?srsltid=AfmBOoqgYWRLrO5Yo9BJHjIKmi3ntj1U68RlXwo9r29rl4vBVVi0YaW8

  Hyperopia or farsightedness can also be called hypermetropia, or long-sightedness, they are all different names for the same condition: a vision problem that causes objects close to you to be blurred, and objects at a greater distance to be clear. The condition is caused if an eye is shorter than normal, or a cornea is not as curved as it should be. […] There is no definite cause identified for farsightedness to this day. Hypermetropia is largely hereditary but can develop in anyone. It’s possible to experience symptoms during childhood, but it is much more common later in life. In fact, anyone above the age of 40 has a much greater chance of experiencing symptoms of hyperopia, with the likelihood growing every year. Ageing doesn’t necessarily cause the eyes to change shape anymore, but it does diminish the eye’s ability to flex enough to accommodate for the refractive error. Additionally, some forms of hyperopia can be caused by injury, drugs, or disease. […] Some diseases that can possibly lead to hyperopia are cataracts, microphthalmia, anophthalmia, and aniridia. […] Unlike other forms of hyperopia that are caused by an irregularly shaped eye, this form is caused by a failure of the muscles around the eye that would normally allow it to focus.

• #27 Long Sightedness | Symptoms, Diagnosis & Causes | Conditions | Healthera

  https://healthera.co.uk/conditions-a-z/long-sightedness/

  Long-sightedness happens when the eye is either too short or the cornea is too flat. This causes light entering the eye to focus behind the retina, making nearby objects appear blurry. […] Risk factors for developing long-sightedness include: Family history of long-sightedness, Being born with a shorter eye length, Being older, as the condition can affect vision more as people age.

• #28 My Child has Hyperopia: Top 8 FAQs – Optometrists.org

  https://www.optometrists.org/childrens-vision/guide-to-pediatric-eye-conditions/my-child-has-hyperopia-top-8-faqs/

  Hyperopia is another term used to describe long or far-sightedness. […] According to the National Eye Institute and the U.S. Department of Health and Human Services, up to 10% of Americans suffer from some degree of hyperopia. […] Hyperopia results from one of several causes: The eyeball is shorter than normal, The cornea is less curved than normal, The lens is thinner than normal. […] The majority of children with hyperopia inherit the condition from their parents. However, it can also be caused by developmental issues in utero or in early childhood. […] Other conditions such as Aniridia, Fragile X Syndrome or Down Syndrome, and traumatic damage to the eye can seriously increase the chances of developing hyperopia. […] Hyperopia is not preventable. In most cases children inherit it from their parents.

• #29 Eyes – long-sightedness | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/eyes-long-sightedness

  Long-sightedness is a common focusing problem. […] Causes of long-sightedness are unknown. […] The exact causes of long-sightedness are not well understood. […] It is known that the eyeballs of long-sighted people tend to be smaller than average, with less curved corneas the main optical component of the eye. […] There may also be a hereditary component, as the children of long-sighted parents can be long-sighted.

• #30 Long-sightedness | Symptoms Causes Treatments | Optimists Healthcare

  https://optimists.in/health-hub/long-sightedness/

  The capacity to see items close up is affected by long-sightedness. […] Hyperopia, also known as hypermetropia, is the medical term for long-sightedness. […] Long-sightedness occurs when the retina, the light-sensitive layer at the rear of the eye, is not adequately focused by the eye. […] The reason could be due to: The eye is too small. The cornea is overly flat. The internal eye lens is unable to focus correctly. […] Although the exact etiology of these issues is frequently unknown, they seldom indicate any underlying disease. […] Long-sightedness can occasionally result from genes you got from your parents or aging eye lenses that become stiffer and less able to focus.

• #31 Refractive Error – Hyperopia (Long sight / Hypermetropia) – Vision and Eye Health

  https://www.vision-and-eye-health.com/hyperopia/

  Spectacles and contact lenses are the commonest ways to treat longsightedness. […] Conductive keratoplasty involves reshaping the cornea without cutting or removing tissue, to allow light entering the eye to become focused uniformly onto the retina. […] Laser refractive surgery involves reshaping the cornea so that light entering the eye can be focused uniformly onto the retina.

• #32 Long Sightedness | Eye Institute | Laser Eye Surgery and Eye Health

  https://eyeinstitute.co.nz/long-sightedness/

  Long-sightedness is a refractive error caused by an imperfection in the eye. The imperfection changes the way your eye focuses the light rays that pass into it. This can happen when: […] Hyperopia is an inherited condition, which means you’re more likely to suffer long-sightedness if one of your parents has it. Hyperopia can develop in childhood, although symptoms are most common among adults. […] Long-sightedness does tend to progress in adults due to the normal ageing process of the eye. However, the correctly powered vision correction device (glasses or contacts) or vision correction surgery allows most people to retain great vision. […] If untreated, long-sightedness can lead to headaches, eye strain, squinting, frequent blinking, difficulty working on a computer or reading.

Zobacz więcej