If you have a refractive error, such as nearsightedness (myopia), farsightedness (hyperopia), or astigmatism, refractive surgery is a method for correcting or improving your vision.
If you vision has become blurry, cloudy or dim, or things you see are not as bright or colorful as they used to be, a cataract may have developed in one or both of your eyes.
The cornea is the clear, front window of the eye. It helps focus light into the eye so that you can see. If it is scarred, swollen or damaged, light is not focused properly into the eye.
