The association between ocular dominance and physiological palpebral fissure asymmetry. Issue 4 (4th July 2017)

• Record Type: Journal Article
• Authors: Doganay, Fatma; Dadaci, Zeynep; Topcu-Yilmaz, Pinar; Doganay Aydin, Hacer
• Is Part Of: Laterality. Volume 22:Issue 4(2017)
• Page Start: 412
• Page End: 418
• Publication Date: 2017-07-04
• Subjects: Palpebral fissure height -- palpebral fissure asymmetry -- ocular dominance -- eye dominance; Laterality -- Periodicals; Cerebral dominance -- Periodicals; 616.8
• DOI: 10.1080/1357650X.2016.1209212
• Languages: English
• ISSNs: 1357-650X

Abstract

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.