Intraocular lens implants: a biocompatibility review.

The natural aging process of the eye inevitably leads to the formation of a cataract, resulting in an increasing loss of vision. A cataract is the clouding of the natural lens in the eye and represents a major physical impairment. Modern surgical techniques allow for removal of the clouded lens and replacement with a prosthetic intraocular lens. This article reviews the intraocular tissue response to the implant, which frequently leads to postoperative complications for the patient.