Understanding Cataracts: Types, Causes & Symptoms

A cataract is an eye condition characterized by a clouding of the lens. Most cataracts develop slowly and don't impair vision in the early stages. There are several common types of cataracts.

Age-Related Cataracts

• A majority of cataract cases are related to the natural aging process. Over half of all Americans will have a cataract condition by the age of 80.

Secondary Cataracts

• Secondary cataracts sometimes form after glaucoma surgery. Secondary cataracts have also been linked to steroid medications, long-term sunlight exposure and diabetes.

Traumatic Cataracts

• Cataracts occasionally develop after eye injuries. Traumatic cataracts sometimes develop several years after the injury occurs.

Congenital Cataracts

• Infants can be born with cataracts or develop them soon after birth. Congenital cataracts typically don't affect vision.

Subcapsular Cataracts

• Subcapsular cataracts are typically seen in individuals who suffer from extreme nearsightedness or diabetic conditions. Subcapsular cataracts develop very quickly.

Radiation Cataracts

• Individuals sometimes develop cataracts after radiation exposure.