Cataract surgery

Cataract surgery is the removal of the natural lens of the eye that has developed an opacification, which is referred to as a cataract. Cataract causes impairment or loss of vision. During cataract surgery, a patient's cloudy natural lens is removed and replaced with a synthetic lens to restore the lens's transparency.

Extracapsular cataract extraction involves the removal of almost the entire natural lens while the elastic lens capsule (posterior capsule) is left intact to allow implantation of an intraocular lens. There are two main types of cataract surgery - Phacoemulsification and Conventional extracapular extraction.