Making stereopsis related to the ability of ocular deviation:a new paradigm for assessment of intermittent exotropia  

作　　者：Jian-Bing Li Wan-Ting Kong Tao Shen Yong-Guang Yuan Chong-Lin Chen Dan-Min Peng Min-Tong Liang Xuan He Dan Luo Jia-Yi Su Wei Wang Rui-Xin Wang Xin-Ping Yu 

机构地区：[1]State Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,Guangzhou 510623,Guangdong Province,China [2]Department of Ophthalmology,the Third Affiliated Hospital,Sun Yat-Sen University,Guangzhou 510630,Guangdong Province,China [3]Guangzhou Xinhua University,Guangzhou 510520,Guangdong Province,China

出　　处：《International Journal of Ophthalmology(English edition)》2025年第2期308-314,共7页国际眼科杂志(英文版)

基　　金：Supported by the National Natural Science Foundation of China(No.82070995,No.82301256);Youth S&T Talent Support Programme of Guangdong Provincial Association for Science and Technology.

摘　　要：AIM:To investigate the underlying factors by establishing a new paradigm for assessing control ability under stereopsis testing conditions.METHODS:This was a prospective observational study.We evaluated the control ability of intermittent exotropia(IXT)patients in three conditions:natural 2D optotype viewing,2D optotype viewing with polarized glasses,and 3D optotype viewing with polarized glasses.Recording with a smartphone,we captured videos to analyze the accurate time of spontaneous exodeviation and subsequent realignment before and after breaking fusion.Additionally,the correlation of stereopsis were also analyzed.RESULTS:A total of 48 patients(age range:4-33y;54.17%male)participated in the study.When viewing 3D optotypes with polarized glasses,their median control scores were 1(interquartile range,0-4)at distance and 0(0-1)at near.These scores were significantly better than those observed under natural viewing conditions,which were 2.5(1-5)at a distance and 1(0-3)at near(Friedman test,P=0.049).Furthermore,those subjects who exhibited exophoria(realignment within 2 seconds)while viewing 3D optotypes with polarized glasses were more likely to have measurable stereo vision(Kendall’sτb=-0.344,P=0.018).CONCLUSION:IXT patients exhibit enhanced control ability when using polarized glasses to view 3D optotypes,notably improving realignment capabilities.This expands our understanding of current tests and offers a potentially sensitive method for assessing IXT severity.

关 键 词：intermittent exotropia STEREOPSIS control ability 

分 类 号：TQ1[化学工程]