CTR does not avert spontaneous IOL dislocation
In what is believed to be the largest reported series of spontaneous in-the-bag IOL dislocation, investigators analyze presenting characteristics and outcomes for 21 eyes with a capsular tension ring (CTR) and 84 eyes without one.
Take-home message: In what is believed to be the largest reported series of spontaneous in-the-bag IOL dislocation, investigators analyze presenting characteristics and outcomes for 21 eyes with a capsular tension ring (CTR) and 84 eyes without one.
By Cheryl Guttman Krader; Reviewed by Betty Lorente, MD
Barcelona, Spain - Implantation of a
However, the presence of a CTR does appear to facilitate repositioning of the capsular-bag-IOL complex, according to research undertaken by Betty Lorente, MD, and colleagues.
The investigators analyzed data for 105 cases of in-the-bag
“In-the-bag IOL dislocation that occurs spontaneously many years after uneventful cataract surgery is the result of progressive zonular dehiscence,” said Dr. Lorente, fourth-year resident, Centro de Oftalmología Barraquer, Barcelona, Spain.
“Some authors advocate using a CTR in all cases to prevent this event, but the role of CTR is controversial as published reports document that in-the-bag IOL dislocation also occurs in eyes with a CTR,” Dr. Lorente explained. “Our study, which represents the largest series of in-the-bag IOL dislocation reported to date, shows that the presence of a CTR in the capsular bag does not prevent IOL dislocation.”
Eyes included in the study were identified through a retrospective search of the surgical database for the years 2005-2009 or were part of a prospective interventional case series operated on during the years 2010-2013.
Dislocation sooner in CTR eyes
The only significant difference found in comparing presentation characteristics of the two study groups was that the IOL dislocation occurred significantly sooner after surgery in eyes with a CTR than in those without, ~5 years versus 8.7 years.
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