Traumatic intraocular lens ectopia from a nonadhesive capsule

Introduction: This study describes a case of traumatic intraocular lens (IOL) ectopia with retention in the pupil that occurred 2 years after cataract surgery. Patient and Clinical Findings: A 55-year-old man, who underwent cataract surgery 2 years ago, sustained an ocular injury while slapping a bug on the left eyelid, following which he had decreased vision. His IOL shifted out of the capsule and was retained in the pupil. Diagnosis, Intervention, and Outcomes: The patient was diagnosed with IOL ectopia with retention in the pupil. An IOL reposition operation was performed successfully. The IOL was completely returned into the capsule, and postoperatively, his uncorrected distance visual acuity immediately improved to 0.097 logMAR. Conclusions: An IOL could slide out of the nonadhesive capsule under external force even if the capsulorhexis is performed perfectly with a continuous curvilinear circle at the center and the anterior capsule covers the IOL optical surface.