Nearsightedness
by David A. Wallace MD
 Nearsighted View: Clear Close, Blurry Far © 2002 Robert Meyers Studio. |
Nearsightedness (myopia) is the most common optical condition in adults worldwide, affecting about 35% of the population. In the nearsighted eye, light from distant objects focuses in front of the retina, not on it; so images are blurry.
Correcting Nearsightedness by laser treatment involves precisely sculpting the desired correction into the cornea. Glasses and contacts work by adding a concave lens to the eye, whereas laser treatment works by evaporating or subtracting a convex lens shape from the cornea.