Macular thickness and retinal nerve fiber thickness analysis ın ocular dominance

Selim Cevher,Savas Cetinkaya,Emine Alyamac Sukgen,Yusuf Kocluk

doi:10.5935/0034-7280.20180068

Abstract

Abstract Objective: To compare macular and peripapillary retinal nerve fiber layer thicknesses of dominant eye and non-dominant eye using optical coherence tomography (OCT). Methods: 104 eyes of 52 healthy young adults were included. Ophthalmological examinations; including measuring refraction, best corrected visual acuity, intraocular pressure (IOP) measurement, slit-lamb biomicroscopy, dilated fundus examination, measuring of central macular thickness (CMT), and peripapillary retinal nerve fiber layer (PRNFL) thickness were performed on each subject. Hole-in-the-card test was used to detect the ocular dominance. Results: There were 25 females (48%) and 27 males (52%) in the study. Eight participants had left eye dominance (15%), forty-four participants had right eye dominance (85%). Mean CMT was 192.5µm in dominant group and 191.9 µm in non-dominant group. There was no statistically significant difference between dominant eye group and non-dominant eye group in either macular thickness or peripapillary retinal nerve fiber layer thickness. Conclusions: No difference between macular and peripapillary retinal nerve fiber layer thicknesses were detected in dominant and non-dominant groups. Further evaluation is needed.

Highlights

Some of the organs of the body have functional lateralization, for example hands, legs, cerebral hemispheres and eyes
Porta described the term of ocular dominance in 1593 firstly
Ocular dominance is in part related to cerebral laterality and hand laterality.There is significantly higher cortical activation in response to the dominant eye than nondominant eye

Summary

Introduction

Some of the organs of the body have functional lateralization, for example hands, legs, cerebral hemispheres and eyes. Brain takes images from two eyes but it uses the images of dominant eye. Porta described the term of ocular dominance in 1593 firstly. Ocular dominance is the tendency to prefer visual input from one eye to the other for sighting, sensory and oculomotor tasks.[1, 2] The superiority of dominant eye whose visual function predominates the non-dominant eye. Ocular dominance is in part related to cerebral laterality and hand laterality.There is significantly higher cortical activation in response to the dominant eye than nondominant eye. Most frequently people's dominant eye's side and dominant hand's side are the same, but the opposite is not rare

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Conclusion