Clinical analysis of the factors contributing to pupillary optic capture after transscleral fixation of posterior chamber intraocular lens for dislocated intraocular lens.

PURPOSE: To study the incidence of and risk factors for pupillary capture after transscleral fixation of a posterior chamber intraocular lens (PC IOL) for dislocated IOLs.

SETTING: Department of Ophthalmology, Kyungpook National University Hospital, Daegu, South Korea.

DESIGN: Retrospective case series.

METHODS: Charts of patients who had PC IOL transscleral fixation for the treatment of dislocated IOLs between January 2010 and August 2015 were reviewed. Demographic data, anterior chamber depth (ACD), axial length (AL), anterior chamber volume (ACV), and anterior chamber angle (ACA) were recorded. The cases of postoperative pupillary capture were collected and the characteristic clinical findings evaluated.

RESULTS: Charts of 63 eyes of 63 patients were reviewed. The mean age was 63 years ± 11 (SD). The mean follow-up after transscleral fixation was 47.8 ± 25.3 months. There were 5 cases of postoperative pupillary capture (incidence 7.8%). A deeper anterior chamber was statistically correlated with an increased incidence of pupillary capture (β coefficient: 0.423; 95% confidence interval, 0.043-0.379; P < .015). There were no significant differences in the incidence of postoperative pupillary capture and age, sex, intraocular pressure, corrected visual acuity, astigmatism, AL, ACV, ACA, trauma history, associated ocular morbidity, or general comorbidity.

CONCLUSION: To reduce the incidence of pupillary capture when ACD values are large, the scleral penetrating point should be adjusted from the corneal limbus.

FINANCIAL DISCLOSURE: Neither author has a financial or proprietary interest in any material or method mentioned.