Extreme monovision with EDOF intraocular lenses

Abstract

Introduction: The successful outcome of maintaining natural extreme monovision in a patient through the implantation of extended depth-of-focus (EDOF) intraocular lenses (IOLs) in both eyes is reported. Patient and Clinical Findings: A 75-year-old woman with a history of extreme monovision (−3.50 diopters [D] spheroequivalent left eye) presented to the clinic for cataract evaluation. At presentation, bilateral blurry vision (both distance and near) was observed with or without spectacles. The patient noted that previous attempts at restoring binocularity with spectacles correction had been unsuccessful, and she maintained a strong desire to maintain her natural extreme monovision. Diagnosis, Intervention, and Outcomes: The patient underwent EDOF IOL implantation (both eyes) with full monovision refractive targets of plano (right eye) and −1.50 D (left eye). Postoperatively, the patient expressed dissatisfaction about her limited near vision (left eye). 7 months later, she underwent an EDOF IOL exchange (left eye) with a new refractive target of −3.25 D. The patient perceived her extreme monovision correction to be a success. Conclusions: This case highlights that although EDOF IOLs are not specifically designed for monovision correction, they may still provide satisfactory results for certain patients.