I had the operation about twelve years ago. It really made a difference. I could not drive a car at night, oncoming headlights blinded me, I wondered why people kept their rooms so dark, why not get brighter light bulbs? I thought. After I had one eye done, I could see the difference. Things that were pure white in the corrected eye were a light tan in the uncorrected eye. Rooms that I thought were dark, became well lit. I could drive at night etc.