Figure 1. Sample types of Intraocular lenses (Source)
Brief: The intraocular lens is generally used to treat cataracts and myopia. The purpose is to replace the damaged or cloudy natural lense with a fully functional light focusing artificial lens. In 1946, Dr. Harold Ridley was in the process of removing a cataract from a patient when a medical student questioned him that he removed the cataract so why didn't he put anything else as a replacement. This question got him thinking. Because he worked with casualties of war with RAF he noticed that often fragments of the plane windshields would become lodged in pilots' eyes. However, the body did not reject the plastic known as polymethyl methacrylate. It was from that point did he start working on designing an implantable PMMA lens that could replace the cataract.
