Characteristics of Patients Achieved Spectacle Independence After Enhanced Monofocal IOL Implantation Targeted at Distance Vision.

Abstract

Purpose: We investigated the percentage of patients achieving spectacle independence after bilateral implantation of enhanced monofocal IOLs targeted for distance vision.

Patients and methods: This was a single-center cross-sectional study. We included consecutive patients who underwent cataract surgery with bilateral enhanced monofocal IOL (AMO Eyhance^TM; DIB00V) implantation. We excluded patients with conditions other than cataracts and patients with toric IOLs. The target refraction was set to the closest non-positive value to zero. One month after surgery, we surveyed patients to determine whether they could drive a car, watch TV, read a book, and operate a smartphone without glasses. Based on the survey results and verbal confirmation by the physician, patients were classified into glasses-free and glasses-required groups. We then compared refractive characteristics between the groups.

Results: Of the 74 patients, 22 (29.7%) did not require glasses. In the glasses-free group, for the eye with the smaller refractive value, the mean target refractive value was -0.264±0.051, and the mean of postoperative refractive value was -0.602±0.414. These values were significantly smaller than those in the glasses-required group.

Conclusions: Patients who underwent enhanced monofocal IOL implantation targeted for distance vision had an approximately 30% chance of achieving spectacle independence. These results suggest that patients for whom the target refraction of one eye could be set to a low value have a significantly higher likelihood of living without glasses.