APR 21, 2008
By Kevin L. Waltz, MD, OD
Cataract/Anterior Segment
This article shows the likely retinal images patients receive with various spherical and aspheric monofocal and multifocal diffractive and refractive intraocular lenses (IOLs). The authors accomplished their goal beautifully. The results were obtained by implanting each lens in the ACE (Average Cornea Eye) model, which is based on corneal data from 71 individuals and designed to simulate an average human eye.
The authors used a classic U.S. Air Force 1951 resolution test target to show the quality of the retinal images with each lens at near and far distances with a 3-mm and a 5-mm pupil. Monochromatic green light was projected through the model eye onto a charged-coupled device positioned in the selected focus plane. The authors also photographed the green light projected through the IOLs implanted in the ACE Model at the position of the focal points in a relatively high magnification to demonstrate the light path with the various lenses.
The article needs to be seen in color in order to view the full effects of the images the authors produced.
Financial Disclosures
Dr. Waltz has no financial interests to disclose.