Clinical Characteristics And Risk Factors For Late Iol Dislocation After Uneventful Cataract Surgery

To evaluate clinical characteristics, risk factors, and surgical outcomes following late spontaneous intraocular lens (IOL) dislocation after uneventful cataract surgery

Ophthalmology, Seoul National University Bundang Hospital

Retrospective chart review and analysis of patients who required surgical management for late IOL dislocation after cataract surgery with endocapsular IOL implantation between 2022 and 2024 (N=20). Clinical characteristics and predisposing risk factors for late spontaneous IOL dislocations were evaluated, including an analysis based on IOL type and material. Refractive and surgical outcome after the surgical management for IOL dislocation were also analyzed.

The medical records and ophthalmic examination results of a total 20 patients were reviewed. The mean age at IOL dislocation was 63.75 ± 11.57 years, and 90% patients were male. The most IOL dislocation types was in-the-bag dislocation (n=13, 65%) and the most dislocation direction was inferior dislocation (n=9, 45%). The mean interval between cataract surgery and IOL dislocation was 10.60 ± 5.00 years, and longer in the patients implanted with one-piece hydrophobic IOLs compared to those implanted with one-piece hydrophilic IOLs (11.0 ± 5.12 years vs. 7.0 ± 1.41 years, P<0.048). Of the patients, 12 had long axial length (> 24.5mm, 60%) and 13 had deep anterior chamber depth (> 3mm, 65%).

The late spontaneous IOL dislocation after cataract surgery was associated with male gender, long axial length and deep anterior chamber depth. When comparing based on IOL materials, the time to IOL dislocation was longer for one-piece hydrophobic IOLs than one-piece hydrophilic IOLs.