Table of Contents
ISRN Ophthalmology
Volume 2014, Article ID 903084, 5 pages
http://dx.doi.org/10.1155/2014/903084
Clinical Study

Effects of Ocular Dominance on Contrast Sensitivity in Middle-Aged People

1Ophthalmology Department, Pamukkale University, Kınıklı, 20070 Denizli, Turkey
2Beyoğlu Eye Research and Training Hospital, 34420 Istanbul, Turkey
3Denizli State Hospital, Eye Clinic, 20125 Denizli, Turkey

Received 7 November 2013; Accepted 13 February 2014; Published 9 March 2014

Academic Editors: F. Giansanti and I.-J. Wang

Copyright © 2014 Gökhan Pekel et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. Our aim was to compare contrast sensitivity values of the dominant and nondominant eyes of healthy middle-aged subjects. Material and Methods. Ninety eyes of 45 healthy middle-aged subjects (30 males and 15 females) were included in this study. Patients were aged between 40 and 60 years, having uncorrected visual acuity (UCVA) of 20/25 or better (Snellen chart). Ocular dominance was determined by hole-in-the-card test. Functional acuity contrast testing (F.A.C.T.) was measured using the Optec 6500 vision testing system (Stereo Optical Co. Inc., Chicago, IL, USA) under both photopic and mesopic conditions. Results. At all spatial frequencies (1.5, 3, 6, 12, and 18 cpd), under mesopic conditions, the contrast sensitivity values of the dominant eyes were slightly greater than those of the nondominant eyes; but only 18 cpd spatial frequency measurements’ difference was statistically significant . Under photopic conditions, the contrast sensitivity values of the dominant eyes and non-dominant eyes were similar at all spatial frequencies . Conclusions. The photopic and mesopic contrast sensitivity values of dominant and nondominant eyes of healthy middle-aged people were similar at all spatial frequencies, except at mesopic 18 cpd spatial frequency.