Nearsightedness: What Happens
The cause is usually an eyeball that is too long. Or it can result from an oddly-shaped cornea or lens. Light rays focus just in front of the retina, instead... Continue reading
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Nearsightedness & Farsightedness
Nearsightedness (Myopia) When you’re nearsighted, things in the distance look blurry. Doctors call it myopia. You’re more likely to have it if: One or both of your parents have itYou... Continue reading
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Astigmatism
If you have astigmatism in one or both eyes, your vision may be out of focus at any distance. It happens when the cornea, the clear “window” that covers the... Continue reading
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Glaucoma: What Happens
Your eye is filled with fluid. Sometimes too much of it builds up and raises pressure inside your eye. This can damage your optic nerve, a bundle of nerve fibers... Continue reading
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Diabetic Retinopathy: What Happens
High blood sugar levels damage the tiny blood vessels that support your retina. They can swell, break, and leak fluid. Sometimes dozens of new, abnormal blood vessels grow. This is... Continue reading
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Tears and Dry Eye
Tears keep your eyes moist. Sometimes you don’t have enough, either from dry air, aging, or other health conditions. Your eyes can get painful and irritated. Eye drops labeled artificial... Continue reading