title: Investigation of unwanted images caused by intraocular lenses.
abstract: 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.
authors.forename: P O
authors.initials: PO
authors.lastname: Burk
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002386:Cataract / Q000473:pathology; D005069:Evaluation Studies as Topic; D006801:Humans; D006956:Hyperopia / Q000503:physiopathology; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008027:Light; D008029:Lighting; D008875:Middle Aged; D008954:Models, Biological; D009216:Myopia / Q000503:physiopathology; D012542:Scattering, Radiation; D012649:Self Concept; D014786:Vision Disorders / Q000209:etiology*; D014785:Vision, Ocular