Nearsightedness (myopia)
is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.
Is it hard to see distant objects, like highway signs, until you’re a few feet away, but easy to read a book up close? Chances are you’re myopic, also known as nearsighted. It’s a pretty common condition that your eye doctor usually can fix with eyeglasses, contacts, or eye surgery.
What Causes Myopia?
The structure of your eye is to blame. When your eyeball is too long or the cornea -- the protective outer layer of your eye -- is too curved, the light that enters your eye won’t focus correctly. Images focus in front of the retina, the light-sensitive part of your eye, instead of directly on the retina. This causes blurred vision. Doctors call this a refractive error.
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