LASIK eye surgery has been popular for more than 20 years, with an estimated 20 million Americans undergoing the procedure to correct nearsightedness and improve distance vision. But some patients say the surgery has ruined their eyesight.
The quick, minimally-invasive surgery uses a laser to cut a flap to reshape the cornea at the front of the eye. Now an expert who once backed LASIK is campaigning to get it off the market.