Prevalence,risk factors and clinical features of sensory A-V pattern exotropia  

作　　者：Bin-Bin Zhu Shi-Yu Tang Xiang-Jun Wang Li-Cheng Fu Jian-Hua Yan 

机构地区：[1]State Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-Sen University,Guangzhou 510060,Guangdong Province,China [2]Ophthalmology,Department of Surgery,the Second People’s Hospital of Foshan,Foshan 528000,Guangdong Province,China

出　　处：《International Journal of Ophthalmology(English edition)》2025年第2期323-329,共7页国际眼科杂志(英文版)

摘　　要：AIM:To investigate the potential mechanisms of A-V pattern and evaluate the surgical outcomes used in the treatment of sensory exotropia.METHODS:The medical records of patients with sensory A-V pattern exotropia who underwent strabismus surgery between May 2014 to June 2019 was retrospectively reviewed.The control group included sensory exotropia patients without A-V pattern and concomitant A-V pattern exotropia patients with normal vision who undergone strabismus surgery over this same time period.Ocular alignment,best corrected visual acuity,oblique muscle function,and stereopsis records were collected.RESULTS:Among the 843 eligible patients,91(10.79%;39 males and 52 females)had A-pattern(54,6.4%)or V-pattern(37,4.4%).Age at onset of vision impairment was 4±5y and at the time of surgery was 25±9y.Statistically significant negative correlations were present between impaired visual acuity and the pre-operative exodeviation(r=-0.198,P=0.016)and patterns(r=-0.207,P=0.015).Age at surgery and exodeviation in patients with concomitant A-V pattern exotropia was significantly earlier as compared with that of sensory A-V pattern exotropia and sensory exotropia(both P<0.0001).There were no significant differences in these clinical variables between sensory exotropia with or without A-V pattern.Deviation and pattern were significantly reduced in patients receiving horizontal rectus surgery with or without oblique muscle surgery(both P<0.0001).CONCLUSION:The prevalence of sensory A-V pattern exotropia in our study is 10.79%.Visual acuity represents an important factor contributing to the occurrence and development of A-V pattern.Isolated horizontal rectus surgery can provide a good option for the correction of sensory A-V pattern exotropia.

关 键 词：sensory exotropia A-V pattern oblique muscle dysfunction horizontal rectus surgery 

分 类 号：R777.41[医药卫生—眼科]