A Convenient and Robust Test to Quantify Interocular Suppression for Children With Amblyopia. (July 2019)

• Record Type: Journal Article
• Authors: Chen, Hui; He, Zhifen; Xu, Jinling; Mao, Yu; Liang, Yunjie; Lin, Danli; Xu, Meiping; Dai, Zhiyue; Chen, Xiaoxin; Zhou, Jiawei; Yu, Xinping
• Is Part Of: I-Perception. Volume 10:Number 4(2019)
• Publication Date: 2019-07
• Subjects: interocular suppression -- amblyopia -- luminance; Perception -- Periodicals; Visual perception -- Periodicals; Perception; Perception; Electronic journals; Periodical; Fulltext; Internet Resources; Periodicals; Periodicals; 153.7
• DOI: 10.1177/2041669519864971
• Languages: English
• ISSNs: 2041-6695

Abstract

Interocular suppression was quantified by the interocular luminance difference that was needed when the two eyes were balanced in discriminating a black–white stripe formed butterfly stimulus, which was dichoptically presented through polarized glasses. Stronger interocular suppression was found in amblyopes than that in controls at both the near (33 cm, 0.95 ± 1.00 vs. 0.14 ± 0.18, p < .001) and far (5 m, 2.18 ± 0.97 vs. 0.24 ± 0.16, p < .001) viewing distances. The interocular suppression in amblyopes was significantly correlated with the interocular visual acuity difference, the visual acuity of amblyopic eye, the Worth-4-Dot test, and the stereo acuity at both the near and far distances (for all cases, p < .001). Our new test enables convenient and robust measurements of interocular suppression in children with amblyopia. The measured interocular suppression is in agreement with other clinical measures.