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Survey: IOL complications vary according to type
SAN FRANCISCO — The reasons for explantation of foldable IOLs vary according to lens type, according to an annual survey. Improvements in manufacturing processes and the use of careful surgical techniques could help avoid the most common causes of IOL explantation, the lead researcher said.
Nick Mamalis, MD, presented the results of the 2002 American Society of Cataract and Refractive Surgery/European Society of Cataract and Refractive Surgeons annual survey of foldable IOLs requiring explantation or secondary intervention during the annual ASCRS meeting here.
For the survey, respondents filled out a form for each IOL they explanted. Preoperative data was collected, as well as the type of IOL removed and the reason for removal.
According to the survey results, hydrophilic acrylic IOLs continue to be removed because of significant postoperative calcification. Three-piece silicone IOLs, three-piece acrylic IOLs and one-piece acrylic IOLs are most commonly removed due to incorrect power calculations. Dislocation and decentration were the most common complications leading to removal of one-piece silicone IOLs.
Although glare or visual disturbances were seen less frequently as reasons for removal, multifocal silicone IOLs were most commonly explanted for those reasons.