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Sandusky
Find Us at Rt 250 (Milan Road) across from the Outback Steakhouse
Text Us: 419-625-7904
Home » News » What Role Does Family History Play In Eye Disease?

What Role Does Family History Play In Eye Disease?

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Your Family Eye Doctor Cares About Your Health

Each of us inherits a wealth of traits from our parents, grandparents and previous generations. But sometimes, there are some less desirable characteristics in one’s genetic code and family history that we inherit along with the good.

Genetics play a vital role in eye health, so knowing what conditions and diseases are found in your family tree can clue in your eye doctor to your personal risk factors and overall health.

Genetics and Eye Disease

Most eye diseases have multiple causes, but more than 350 eye diseases and conditions have a clear genetic component. Below, we outline the most common eye conditions that can develop primarily, or in part, due to your genes.

Glaucoma is a leading cause of blindness around the world and results from both genetic and environmental factors. Glaucoma causes permanent damage to your optic nerve, impacting the visual signals sent from the eye to the brain, resulting in ‘Tunnel Vision.’ Having a family member who’s been diagnosed with glaucoma increases your chances of developing the disease by 4 to 9 times. Family history is also valuable in predicting one’s chances of becoming blind from glaucoma and the rate of its progression.

Age-related macular degeneration (AMD) is another sight-threatening eye disease that tends to run in families. AMD causes significant loss of vision due to damage to your central vision. In fact, about 1 in 5 patients with AMD will also have an affected sibling or parent. Having a close relative with AMD also makes a person about 4 times more likely to develop the late, more serious stage of the condition.

Genetics are also partially responsible for the development of cataracts, the clouding of your natural lens, inside the eye. Research published in IOVS (July 2001) found that up to 58% of age-related cataracts are due to genetics, while the rest of the cases are due to environmental factors and eye injuries.

Diabetic retinopathy, a condition that affects the retinal health of diabetics, is another example of an eye disease that one can inherit. A study published in Current Genomics estimates that a person’s genes account for 20-25% of their risk of developing diabetic retinopathy, as well as how quickly it progresses.

Less common eye conditions are also linked to genetics. About 4 out of 10 people with strabismus (crossed eyes) have a relative with the same condition. Amblyopia (lazy eye), myopia (nearsightedness), astigmatism and hyperopia (farsightedness) also tend to run in families.

Regular Eye Exams are Crucial For Eye Health

The good news is that even if you have a family history of eye disease, it doesn’t guarantee you'll have the same diagnosis. As a matter of fact, lifestyle can play a massive role in maintaining your visual health.

Consuming an eye-healthy diet, exercising regularly, maintaining healthy body weight, refraining from smoking and getting enough sleep have all been shown to mitigate the risk of certain eye diseases. But the best thing you can do for your eyes is to schedule yearly eye exams with your optometrist to help catch eye disease early in its tracks before significant vision loss develops. This is especially relevant for those having family members with any sort of eye disease or condition.

At Performance Vision Care, we work together with our patients to preserve and protect their eyesight and eye health for a lifetime.

To schedule your comprehensive eye exam, call Performance Vision Care in Independence today!

Frequently Asked Questions

Q: Do I need to have my eyes checked if I don’t have any visual problems or a family history of eye disease?

  • A: Yes. Many serious eye diseases like glaucoma and AMD typically begin without any warning signs or symptoms. The only way to detect the onset of such diseases is by having a thorough and comprehensive eye evaluation. Many eye conditions can start at any age, making yearly eye exams important for all.

Q: Which lifestyle factors contribute to the onset and progression of eye diseases and conditions?

  • A: Each disease has its own set of environmental risk factors, but there are a few common denominators. Smoking, obesity, high blood pressure and severe nutrient deficiencies can all harm eye health. Risk factors for nearsightedness include excessive near work (reading, looking at a digital screen) and not enough time spent outdoors. Speak with your optometrist about how your lifestyle may be impacting your eyes.

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