Spontaneous in-the-bag IOL dislocation was found to be most frequent in eyes that had previously undergone vitrectomy, a study found.
The study authors set out to analyze cases of late-onset spontaneous in-the-bag IOL dislocation and compare their results with previous analyses.
The retrospective study included 21 eyes of 18 patients identified with dislocation of the entire capsular bag containing the IOL. Mean patient age at the time of IOL removal was 67.8 years. Patients who presented with ocular trauma were excluded from the study.
The mean interval between primary surgery and IOL dislocation was 7.9 years.
Study results showed that eight eyes of seven patients had previous vitrectomy, three eyes of two patients had high myopia, two eyes of two patients had uveitis, two eyes of one patient had retinitis pigmentosa, and one eye of one patient had pseudoexfoliation, the authors said.
Results showed no associated condition in two eyes of two patients who were younger than fellow patients in the study.
“This result differs from previously published reports that have found a higher frequency of pseudoexfoliation and lower frequency of prior vitrectomy,” the authors said. “In-the-bag IOL dislocation was frequently associated with prior vitrectomy and sometimes occurred without specific conditions.”