Surgery for intermittent Exotropia: A Comparison of Outcomes Following Two Different Surgical Techniques

Auckland District health board0 个研究点目标入组 120 人开始时间: 2010年12月1日最近更新: 2020年1月13日

试验速览

暂无简介。

•Age 3-18 years
•History of intermittent exotropia intermittent at either near or distance
•Full eye movements
•Visual acuity 6/9 or better each eye best corrected with crowded test by the time of surgery
•Any myopic refractive error, anisometropia or astigmatism of 1 dioptre or greater or hyperopia which is reducing the vision to less than 6/9 must be treated prior to inclusion.
•Basic exotropia with difference between near and distance measurements <10 dioptres, or simulated divergence excess with difference between near and distance measurement <10 dioptres after +3.00 test and/or patch test.
•Able to obtain full informed consent from the family for randomisation
•Able to obtain accurate prism cover test measurements (distance and near cover test within 5^ on at least 2 visits)

•Unable to obtain accurate prism cover test measurement
•Convergence insufficiency exotropia or true divergence excess
•Anyone with neurological/systemic abnormalities as the surgical result can be unpredictable
•Anyone requiring oblique muscle surgery
•Previous eye muscle surgery
•Adjustables
•A” greater than 10 or V” greater than 15dioptres
•Anyone unwilling to be randomized

发起方