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A cataract is a clouding of the natural lens of your eye. The lens works like the lens of a camera, or telescope, by adjusting as needed to help you see things up close or far away. With age, the lens loses its ability to focus up close, which is why some patients need reading glasses. The lens is made of water and protein, arranged in a way the lets light pass through unobstructed. As you age, the protein begins to clump together, resulting in a clouded area in the lens, and clouded areas in your vision.


Types of Cataracts

Cataracts Subcapsular cataracts begin at the back of the lens. This type of cataract is most common in people with diabetes, high farsightedness, retinitis pigmentosa or those taking high doses of steroids.

Nuclear cataracts form in the center of the lens and are associated with the natural aging process.

Cortical cataracts form in the lens cortex, and gradually grow from the outside of the lens to the center. Cortical cataracts are common in patients with diabetes.