Doctor insights on:
Do People With Blue Eyes Get More Cataracts
Not at all: Iris color is determined by the amount of brown pigment it contains. A large amount creates brown eyes; less pigment creates a blue appearance. Eye sight is related to the shape of the eye and health of the retina (film layer) and optic nerve. Some eye conditions can lead to poor vision and blue eyes (ocular albinism), but eye color itself is usually not related to eye sight. ...Read moreSee 1 more doctor answer
Possibly : In bright light. Similar effect to that of athletes putting the black unde there eyes. ...Read more
Blepharitis: The more fair skinned you are the more likely to have blepharitis. This may be one reason people wit lighter colored eyes get red-eyes more often. But only in an eye doctor's practice one may notice that. You need to have your eyes examined anyway. They also have less melanin in the iris and may be more photosensitive and prone to irritated eyes. ...Read moreSee 1 more doctor answer
No Known Assn.: Visual acuity that can be improved with glasses often relates to the shape of the eyeball which is, as far as is known, not associated with eye color. The genes which determine eye color are being worked out: http://www.sciencedirect.com/science/article/pii/S0002929707000407 and may have some weak association with risk of melanoma. ...Read moreSee 1 more doctor answer
Iris Pigment: The color of your iris should have NO bearing on LASIK surgery outcome. Having stated that, light colored irides may be slightly more light sensitive due to allowing more light to enter the eye, but this effect is more related to the pupil size than the color. If one's pupil dilates more than another, it may cause more aberrations as the light enters the pupil. ...Read more
No: Cataracts are the "gray hair of the eyes" - everyone gets them if they live long enough. There is no evidence that eye color significantly contributes to speed of cataract growth. In fact, most people have lens changes by the time they are in their early 50s. The time to have cataract surgery is dictated by how bothered you are by the vision changes caused by your cataracts. ...Read more
Why do some people/children have very white sclera in the eye and others have more veiny or bloodshot sclera?
Normal variations: Each person will have different blood vessels in the conjunctiva, so some variation is normal. If your eyes are chronically red, however, it may be a sign of ocular inflammation, dry eye or other causes and may be treatable with drops. I'd suggest anyone with chronic red eyes to be examined. ...Read moreSee 1 more doctor answer
Lack of melanin.: Neural development of the optical system requires the presence of the pigment melanin, which is deficient in oculocutaneous or ocular albinism. This can lead to a number of vision defects, such as astigmatism, decreased acuity, photophobia, retinal hypoplasia, and nystagmus. ...Read more
No: Iris color is not related to refractive errors. ...Read more
No: The size of the eyeball does not have any impact on risk of blindness. ...Read more
Yes: Some people have unstable refractive errors and can experience changing prescriptions throughout their lives. Many things influence your refraction including the length of your eye, the shape of the cornea and lens, degeneration of the cornea and or lens, and changes in body chemistry especially blood sugar. The refraction can change in many ways throughout life. ...Read more
Have macular pucker with some distortion & macropsia but see 20/20. Can symptoms make it more difficult to use monovision. I get headaches.
No: The question here is how you define weak eyes. Medically the term weak eyes has no meaning and is not used. Myopic eyes actually have optics that are too strong (more light bending power) so the correction is a lens that disperses light. Myopes eyes are not weak and function well with the proper correction. ...Read more
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