Introduction
Most often, patients choose to be fit with contact lenses for refractive reasons, in other words, as an alternative to glasses, to correct nearsightedness, farsightedness, astigmatism, or presbyopia.
Some patients need to wear contact lenses for other reasons. They may have a disfigured cornea or be missing a portion of the colored part of their eye (aniridia) due to trauma or other defect.
Colored or tinted contact lenses also may be worn for purely for cosmetic reasons. Patients fit in these lenses may choose to wear contact lenses simply to change or enhance the color of their eye.