Symmetry of Peripapillary-Optical Coherence Tomography Angiography Parameters between Dominant and Non-dominant Eyes in Normal Eyes
10.3341/jkos.2021.62.11.1518
- Author:
Cheon Kuk RYU
1
;
Hyung Bin LIM
;
Jung Yeul KIM
Author Information
1. Department of Ophthalmology, Chungnam National University Hospital, Daejeon, Korea
- Publication Type:Original Article
- From:Journal of the Korean Ophthalmological Society
2021;62(11):1518-1526
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Purpose:To assess whether optical coherence tomography (OCT) measurements and peripapillary microvascular parameters measured via optical coherence tomography angiography (OCTA) were similar between the dominant and non-dominant eyes of normal subjects.
Methods:We retrospectively analyzed spectral domain OCT and OCTA data on healthy Koreans. The “hole-in-the-card” technique was used to determine ocular dominance. The perfusion density (PD) and flux index (FI) of the peripapillary 4.5 × 4.5-mm area were measured via OCTA. Central macular, peripapillary retinal nerve fiber layer, and macular ganglion cell-inner plexiform layer thicknesses were measured with the aid of spectral-domain OCT. The OCT and OCTA data of dominant and non-dominant eyes were compared.
Results:A total of 84 eyes of 42 healthy subjects were analyzed. The average age was 27.3 ± 5.63 years. Twenty-eight subjects (66.7%) were right eye-dominant and 14 (33.3%) left eye-dominant. None of the central macular (260.00 ± 14.16 μm, 258.71 ± 15.18 μm, p = 0.183), macular ganglion cell-inner plexiform layer (82.02 ± 5.07 μm, 82.43 ± 5.60 μm, p = 0.460), or peripapillary retinal nerve fiber layer thickness (99.36 ± 9.27 μm, 97.90 ± 9.46 μm, p = 0.091) differed between the eyes; neither did any OCTA-assessed microvascular parameter.
Conclusions:No OCT or OCTA parameter differed between dominant and non-dominant eyes. No parameter identified ocular dominance.
