In January I had cataract surgery on my left eye. In the follow-up appointment, my vision was 20-25; however, there was a small chip left in my eye. Two weeks after the first surgery, the chip was removed and a suture placed in the eye. It was removed four days later, and my vision was 20-40. The surgeon said that would improve, but it has not. Ten days later, a cataract was removed from my right eye. Both IOLs were Technis aspheric, and the right was set for mini-monovision. 9-1/2 months after the last surgery, I have problems. There is what I suppose is positive dysphotopsia in both eyes, and I would seem to be one of the few who do not get rid of it. Day or night, when I come upon a light source which is brighter than the ambient light, I see the edges of both lenses which look like two lighted hoops close together. The hoops disappear shortly when my eyes have adapted to the light. In addition, in all kinds of ambient light, when a light with a bright center, such as a light bulb, traffic light, LED light on a computer, clock, etc., is in the line of vision of my left eye, I see a ray of light on both sides of the center of the light source, in a diagonal pattern, together with a halo or haze around the light. The rays do not disappear unless I move so that my left eye does not see the light source. I have been in places, such as restaurants, offices, etc., with lights so placed that I have had to see light rays for an hour or two with no relief unless I close my left eye or leave. In March, my ophthalmologist said the dysphotopsia situation should approve and told me to see her in several months. As for the light rays in my left eye, she did not offer a reason for the problem and spoke of correcting the problem with glasses. Glasses, however, did not help the issue, and I saw a second optometrist two weeks ago. There was only a minimal change in my prescription; it is now -0.75, -0.25, 055 for the right eye and +1.00, -1.75, 090 for the left eye. I had accepted the surgeon’s suggestion of aspheric lenses for better night vision, but I have worse night vision than before and now cannot drive at night or in bright sunlight. Although from what I have read, I can account for seeing the lens edges which shortly disappear, the problem of seeing light rays which are continuous as long as the light is in view, seems to have a different cause. Neither the surgeon nor the two optometrists I saw spoke of a problem with positioning of the lenses or folds when I asked them about those possibilities, nor was I given any explanation as to a possible cause. I would appreciate any information you can give me regarding the possible causes of the light rings and the light rays.