For the past 30 years, ophthalmologists have treated cataracts by replacing them with artificial lenses. While millions of Americans successfully undergo this proven surgery each year, in most cases, patients still require glasses for reading after cataract surgery. That is because all previously available intraocular lenses were stationary and did not adjust to focus, or accomodate.

Crystalens works like the eye's natural lens to allow most patients to see images that are distant, near, and intermediate without glasses. The Crystalens is engineered to move back and forth inside the eye to bring objects at all distances into focus.