Relationship between Dominant Eye and Refractive Error in Myopic Anisometropia

Seung-Ki Lee; Sungjin Kim; In Jeong Lyu

doi:10.3341/jkos.2019.60.5.470

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Lee, Kim, and Lyu: Relationship between Dominant Eye and Refractive Error in Myopic Anisometropia

Original Article

Journal of the Korean Ophthalmological Society 2019; 60(5): 470-473.

Published online: 15 May 2019

DOI: https://doi.org/10.3341/jkos.2019.60.5.470

Relationship between Dominant Eye and Refractive Error in Myopic Anisometropia

Seung-Ki Lee, MD¹, Sungjin Kim, MD¹, In Jeong Lyu, ^1,²

¹Department of Ophthalmology, Nowon Eulji Medical Center, Eulji University College of Medicine, Seoul, Korea.

²Department of Ophthalmology, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.

Address reprint requests to In Jeong Lyu, MD. Department of Ophthalmology, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, #75 Nowon-ro, Nowon-gu, Seoul 01812, Korea. Tel: 82-2-970-1297, Fax: 82-2-970-2436, ijlyu@kirams.re.kr

Received 6 December 2018 Revised 14 January 2019 Accepted 16 April 2019

The Korean Ophthalmological Society

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To investigate the relationship between dominant eye and refractive error in patients with myopic anisometropia.

Methods

This study population consisted of myopes less than 15 years old who were followed up for anisometropia defined as interocular difference of spherical equivalent (SE) ≥1.0 diopter (D). All patients underwent the hole-in-the-card test at far and near to determine ocular dominance. The data were analyzed for statistical significance using Fisher's exact test.

Results

A total of 102 eyes in 51 patients were analyzed. The mean age of the patients was 10.4 ± 1.4 years and 54.9% were male. The mean SE was −2.97 ± 1.95 D in the right eye and −3.02 ± 1.92 D in the left eye. The right eye was the dominant eye in 43.1% and 37.3% at distance and near, respectively. The agreement of dominancy between distant and near was 82.4%. The near dominant eyes showed statistically significant accordance with more myopic eyes (p = 0.009). On the other hand, there was no statistically significant relationship between more myopic eyes and distant dominant eyes (p = 0.09).

Conclusions

The near dominant eye was more myopic eye in patients with myopic anisometropia. This was considered to be related with the lag of accommodation in dominant eye with near distance.

Keywords: Anisometropia, Myopia, Ocular dominance, Refractive errors

Figures and Tables

Table 1

Baseline characteristics of children with anisometropic myopia (n = 51)

Values are presented as mean ± standard deviation or number unless otherwise indicated.

Table 2

Relationship between dominant eye and more myopic eye

Values are presented as number (%).

^*Fisher's exact test.

Notes

^{Conflicts of Interest} The authors have no conflicts to disclose.

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017R1C1B5017079).

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