Eye surgeries to correct vision have concentrated on changing the curvature of the cornea.
Refractive power is both a function of curvature and the change in refractive index.
The cornea is the transparent tissue that covers the front of the eye. An easy way to locate the cornea is to look at your eye in the mirror. The cornea is the transparent tissue that covers the front of the eye. Corneal Disorders Superficial punctate keratitis is a nonspecific finding. Behind this clear window lies the iris, or colored portion of the eye.