Purpose: The purpose of this study was to investigate the efficacy of diffractive multifocal intraocular lenses (IOLs) in non age-related cataract patients cataract patients.
Subjects and methods: The subjects comprised 49 eyes of 37 patients aged less than 40 years who had undergone diffractive multifocal IOL insertion with a+4.0 D addition for cataracts. We investigated their medical history, corneal astigmatism, ocular axial length, lens opacity site, postoperative distant and near visual acuity (logMAR), contrast sensitivity, use of glasses, and glare or halo effects.
Results: A history of atopic dermatitis was observed in 40.5% of the patients, 89.8% of whom exhibited with-the-rule astigmatism. Mean axis length was 25.26±1.52 mm, and anterior subcapsular opacification was observed in 65.3% of the patients. Postoperative mean unaided visual acuity (logMAR) was 0.05±0.12 (distant) and 0.09±0.13 (near). While contrast sensitivity was below the normal range for high frequency regions, 86.5% of the patients did not use glasses. Moreover, no severe glare or halo effects were observed.
Conclusion: Diffractive multifocal IOLs reduced the dependence on glasses in non age-related cataract patients, and favorable unaided visual function was achieved.
Nippon Ganka Gakkai Zasshi (J Jpn Ophthalmol Soc) 123: 150-155, 2019.