Clinical Study of Changes in Eye Dominance after Pseudophakic Conventional Monovision
10.3341/jkos.2019.60.6.534
- Author:
Minsub LEE
1
;
Ki Cheul SHIN
Author Information
1. Department of Ophthalmology, Konkuk University School of Medicine, Seoul, Korea. dr_shin@hanmail.net
- Publication Type:Original Article
- Keywords:
Bilateral cataract surgery;
Conventional pseudophakic monovision;
Presbyopia;
Ocular dominance
- MeSH:
Cataract;
Clinical Study;
Depth Perception;
Dominance, Ocular;
Humans;
Plastics;
Presbyopia;
Retrospective Studies;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
2019;60(6):534-540
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was to evaluate whether eye dominance changes after conventional pseudophakic monovision, and to identify factors that affect changes in eye dominance. METHODS: This retrospective study included 70 patients who underwent bilateral conventional monovision cataract surgery. Patients were divided into two groups based on whether they experienced a change in the dominant eye. We compared patients' uncorrected distance visual acuity (UCDVA), uncorrected near visual acuity (UCNVA), best-corrected visual acuity (BCVA), spherical equivalent, stereopsis, and time interval between cataract surgeries. RESULTS: The mean age was 71.26 ± 10.84 (range, 25–90) years, mean interval between surgery in each eye was 118.46 ± 183.50 (range, 17–1,018) days, and mean postoperative diopter difference was 1.16 ± 0.53 (range, 0.00–2.75) diopters. After bilateral cataract surgery, 22 patients (31.43%) experienced a change in eye dominance, whereas 48 patients (68.57%) experienced no change. There were no differences in the time interval between cataract surgeries, preoperative UCDVA and UCNVA, pre- and postoperative BCVA, or stereopsis in either group. Patients who experienced a change in eye dominance showed smaller differences between preoperative and postoperative spherical equivalent, compared with patients who experienced no change in eye dominance (t-test, p < 0.05). CONCLUSIONS: Twenty-two (31.43%) patients whose nondominant eyes were targeted for near vision showed altered eye dominance after conventional monovision cataract surgery. Eye dominance shows greater plasticity in patients with smaller differences between preoperative and postoperative spherical equivalent.
