Old Intraocular Lenses May Degenerate

A group of doctors has discovered that intraocular lenses (IOLs) can degenerate. In an article in the September 2002 issue of Ophthalmology, they described 25 IOLs from the 1980s and early 90s that had cloudy spots; for most of the 18 patients, this resulted in a vision decrease. The degeneration was not limited to one brand, and the researchers think it may have been caused by "manufacturing variations."

(Source: APBiscom)