title: The association between ocular dominance and physiological palpebral fissure asymmetry.
abstract: Physiological palpebral fissure asymmetry is a common observation in a physician's everyday practice. The goal of this study was to examine the relationship between palpebral fissure height (PFH) and ocular dominance. Sixty-nine healthy volunteers (42 female, 27 male) were included in this research, and ocular dominance was determined using hole-in-the-card and pointing-a-finger tests. Those volunteers with inconsistent test results were excluded. Standard photographs were taken of all of the subjects in the primary position with a consistent background and photographic equipment. The PFHs were measured using an ImageJ analyser, and a mixed ANOVA was used for the statistical analysis. Overall, 87% of the participants showed small differences in their PFHs, with their dominant eyes being significantly wider than their non-dominant eyes (10.51 ± 0.97 vs. 10.32 ± 1.03; p = .001). This study revealed that ocular dominance has a significant effect on the PFH. Further research is required to understand the importance of this association in daily practice.
authors.affiliation: a Department of Neurology , Mevlana University School of Medicine , Konya , Turkey.
authors.forename: Fatma
authors.initials: F
authors.lastname: Doganay
authors.affiliation: b Department of Ophthalmology , Mevlana University School of Medicine , Konya , Turkey.
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Dadaci
authors.affiliation: c Department of Ophthalmology , Konya Training and Research Hospital , Konya , Turkey.
authors.forename: Pinar
authors.initials: P
authors.lastname: Topcu-Yilmaz
authors.affiliation: d Department of Neurology , Konya Training and Research Hospital , Konya , Turkey.
authors.forename: Hacer
authors.initials: H
authors.lastname: Doganay Aydin
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D003430:Cross-Sectional Studies; D023882:Dominance, Ocular / Q000502:physiology*; D005133:Eye Movements / Q000502:physiology*; D005143:Eyelids / Q000002:abnormalities* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D014743:Videotape Recording; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult
keywords: Palpebral fissure height; eye dominance; ocular dominance; palpebral fissure asymmetry