Purpose: To investigate predictive factors for redislocation in patients with recurrent intraocular lens (IOL) dislocation following secondary scleral-fixated IOL (SFIOL) surgery. Setting: Two tertiary referral hospitals Design: Retrospective case series Methods: Patients undergoing SFIOL surgery were grouped into redislocation and no-redislocation groups. Medical records of consecutive patients who underwent SFIOL surgery between June 2014 and December 2019 at two tertiary referral centers were reviewed. Data regarding patient demographics, treatment factors, anatomical and functional outcomes, and postoperative complications were recorded. Results: We included 237 eyes of 225 patients (169 [75.1%] men). The redislocation group was more likely to have a younger mean age at the initial SFIOL surgery (redislocation vs no-redislocation, 55.4 vs 62.0 years, respectively; P =0.008), have a prior history of a previous suture-break (23 eyes, 52.3% vs 1 eye, 0.5%; P &lt;0.001), and have undergone the initial SFIOL surgery using &lt;1 mm-sized side-port incisions (17 eyes, 38.6% vs 32 eyes, 16.5%; P =0.002) than was the no-redislocation group. Additionally, the redislocation group had a higher occurrence of complications ( P &lt;0.001). Multivariable regression revealed that younger age, left eye involvement, aphakic status prior to the surgery, unremarkable primary IOL dislocation cause, need for ocular hypertension treatment and glaucoma surgery, and no large incision during the initial surgery were significantly (all P &lt;0.05) associated with redislocation. Conclusion: Younger age, left eye involvement, postoperative complications like ocular hypertension and glaucoma, and techniques without large incisions increase the risk of redislocation. Conversely, lower risk factors include unremarkable surgery causes and a history of aphakic conditions.

Factors predicting redislocation or suture-break in eyes after scleral-fixated intraocular lens

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