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Published on: September 20, 2024
Characteristics of Patients Achieved Spectacle Independence After Enhanced Monofocal IOL Implantation Targeted at
Naoki Tojo1, Mitsuya Otsuka1, Hiroshi Katayama1
1Department of Ophthalmology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan.
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 EyhanceTM; 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.
