Investigation of unwanted images caused by intraocular lenses.

A widely circulated paper by IOLAB Corporation describing unwanted images inadvertently presented various images that could not exist with a centered intraocular lens as was claimed in the study. I repeated the IOLAB experiments and found that artifacts within the Gullstrand eye model, which was used in the IOLAB study, were the cause of these images. I also found that a myopic eye will see a collimated light or point source as a mottled cluster of bright spots which can be simulated, in an eye model, by a faceted corneal lens. From this observation, I learned that people can see their own cataracts when looking at a distant light.