ISSN 1671-3710
CN 11-4766/R
主办:中国科学院心理研究所
出版:科学出版社

心理科学进展 ›› 2017, Vol. 25 ›› Issue (suppl.): 89-89.

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 The amblyopic eye is still “lazy” in clinically treated amblyopia

 Wuxiao Zhaoa; Wuli Jiab,c; Ge Chenc; Yan Luoa; Borong Linc; Qing Hec; Zhong-Lin Lud; Min Lia; Chang-Bing Huangc   

  1.  a Center for Optometry and Visual Science, Department of Optometry and Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, 6 Taoyuan Road, Qingxiu Dist., Nanning, China, 530021
    b School of Education Science, Huaiyin Normal University, 111 Changjiang West Road, Huaian, China, 223300
    c CAS Key Laboratory of Behavioral Science, Institute of Psychology, 16 Lincui Road, Chaoyang Dist., Beijing, China, 100101;
    d Laboratory of Brain Processes (LOBES), Departments of Psychology, Center for Brain and Cognitive Sciences, Center for Cognitive and Behavioral Brain Imaging, The Ohio State University, Columbus, OH, United States of America, 43210.
  • 出版日期:2017-08-26 发布日期:2017-08-13
  • 基金资助:
     

 

    

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  • Online:2017-08-26 Published:2017-08-13
  • Supported by:
     

摘要:  PURPOSE: The gold standard of a successful amblyopia treatment is full recovery of visual acuity (VA) in the amblyopic eye, but there has been no systematic study on how the previously amblyopic eye (pAE) behaves in binocular viewing conditions. In this research, we aimed to quantify sensory dominance of the pAE in a variety of perceptual tasks in subjects with treated amblyopia.
METHODS: Sixteen treated amblyopes with similar visual acuity in two eyes participated in this study. Stereoacuity, monocular and binocular contrast sensitivity functions (CSF), binocular phase combination, and pAE dominance in binocular rivalry were measured. Three indices were derived to quantify sensory eye dominance: (1) binocular contrast summation ratio, (2) interocular balance point in binocular phase combination, and (3) percentage of pAE dominance in rivalry. RESULTS: Stereoacuity and pAE dominance in binocular rivalry in "treated" amblyopia were largely comparable to those of normal subjects. CSF of the pAE remained deficient in high spatial frequencies. The binocular contrast summation ratio is significantly lower than normal standard. The interocular balance point is 34%, indicating that contrast in pAE is only 34% as effective as the same contrast in pFE in binocular phase combination.
CONCLUSIONS: Although VA, stereoacuity, CSF and binocular rivalry at low spatial frequency in treated amblyopes were normal or nearly normal, the pAE remained "lazy" in high frequency domain, binocular contrast summation, and interocular phase combination. Our results suggest that structured monocular and binocular training are necessary to fully recover deficient functions in amblyopia.

关键词:  , treated amblyopia, lazy, binocular, monocular

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