One of the most commonly performed eye surgical procedures is the insertion of an intraocular lens to treat cataracts. A cataract is the clouding of the lens inside the eye, which causes severe vision impairment. During cataract surgery, the eye’s natural lens is removed and replaced by an artificial lens called an intraocular lens (IOL). Before IOLs were available, cataract patients were forced to wear exceptionally thick eyeglasses after surgery. Now, with advanced technology, the use of IOLs has shown to significantly reduce the need for eyeglasses and become a well-known treatment for cataracts.