A cataract is a clouding of the normally clear lens of the eye. Light passes through the eye’s lens, and the lens then focuses this light on the retina so you can see. When the lens is cloudy or opaque, it interferes with this passage of light and blurs vision.

There are three types of cataracts:

  • Nuclear cataracts that affect the center of the lens
  • Cortical cataracts that affect the edges of the lens
  • Posterior subcapsular cataracts that affect the back of the eye.

There are many misconceptions about cataracts. A cataract is not a film over the eye. It is not caused by overuse of the eye. A cataract is not a cancer, and it is not spread from one eye to the other. Most importantly, a cataract is not a path to irreversible blindness. In fact, cataract surgery is a safe, common, and simple procedure with an excellent success rate that can give you better vision.

What is a Cataract?