Inside of the eye there is a structure called the lens of the eye, which helps focus light. It is normally clear but when it becomes cloudy it is called a cataract. There is no medical treatment for a cataract. Surgery consists of removing the cloudy lens and in its place implanting an artificial man made clear plastic lens called an intra ocular lens implant (IOL). Cataract surgery can be straight forward or complex depending on other eye conditions that may be present. An uncomplicated cataract IOL surgery is an outpatient procedure typically taking 20-30 minutes which can be done without general anesthesia as an outpatient. Visual recovery is generally rapid and new glasses are often prescribed in about four weeks after surgery.