Cataract surgery is the removal of the natural lens of the eye (also called crystalline lens ) that has developed an opacification, which is referred to as a cataract.

A disadvantage is that a vitrectomy always leads to more rapid progression of a cataract in the operated eye.

Metabolic changes of the crystalline lens fibers over time lead to the development of the cataract and loss of transparency, causing impairment or loss of vision.

Instead of finding out what we thought was the case that blindness was caused mostly by glaucoma and trachoma we were astounded to find out that blindness was caused instead by cataract.

In 1995, she attended events commemorating the end of the war fifty years before, and had two operations one to remove a cataract in her left eye, and one to replace her right hip.