how did he manage to identify the correct image and drive. for me it was scary and I was afraid of getting into an accident, the prism lenses help and now able to drive with confidence except it has been four years now and distance vision becoming fuzzy again so need to update lenses. I am 71, have cataracts and floaters, optometrist says not bad enough for surgery. Older brother, 81, just had the surgery and says no need to wait.