Color vision deficiency is a term that is used to describe one of a number of hereditary or acquired color vision problems. The inherited form is the most common deficiency. It affects both eyes and does not worsen over time. This type of color vision deficiency occurs more in males than in females.

Astigmatism often refers to a cornea that is oval in shape, rather than round shaped. The oval shape of the cornea causes light to focus on more than one point in the eye, resulting in blurred vision. Astigmatism typically occurs along with nearsightedness and farsightedness. Astigmatism can easily be

Age-related macular degeneration (AMD) is the most common cause of blindness in individuals age 65 and older in the western world. It results from a hardening of the arteries that nourish the retina affecting the macula, part of the retina that is responsible for clear vision. Deprived of oxygen and