Comparison between two autorefractor performances in large scale vision screening in Chinese school age children  

作　　者：Di Wang Nan Jin Ru-Xia Pei Li-Qiong Zhao Bei Du Gui-Hua Liu Xi-Lian Wang Rui-Hua Wei Xiao-Rong Li 

机构地区：[1]Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science,Eye Institute and School of Optometry,Tianjin Medical University Eye Hospital,Tianjin 300384,China [2]Tianjin Beichen District Hospital of Traditional Chinese Medicine,Tianjin 300400,China

出　　处：《International Journal of Ophthalmology(English edition)》2020年第10期1660-1666,共7页国际眼科杂志（英文版）

基　　金：Supported by Tianjin Major Science and Technology Projects(No.17ZXHLSY00070);Tianjin Clinical Key Discipline Project(No.TJLCZDXKQ012)。

摘　　要：AIM:To evaluate the effectiveness of Grand Seiko Ref/Keratometer WAM-5500 compared to Topcon KR800 autorefractor in detecting refractive error in large scale vision screening for Chinese school age children with the WHO criteria.METHODS:A total of 886 participants were enrolled with mean age of 9.49±1.88 y from Tianjin,China.Spherical equivalent(SE)was obtained from un-cycloplegic autorefraction and cycloplegic autorefraction.Topcon KR 800(Topcon)and Grand Seiko WAM-5500(WAM)autorefractors were used.Bland-Altman Plot and regression were generated to compare their performance.The overall effectiveness of detecting early stage refractive error was analyzed with receiver operating characteristic(ROC)curves.RESULTS:The mean SE was-0.98±1.81 diopter(D)and the prevalence of myopia was 48.9%defined by WHO criteria according to the result of cycloplegic autorefraction.The mean SE of un-cycloplegic autorefraction with Topcon and WAM were-1.21±1.65 and-1.20±1.68 D respectively.There was a strong linear agreement between result obtained from WAM and cycloplegic autorefraction with an R2 of 0.8318.Bland-Altman plot indicated a moderate agreement of cylinder values between the two methods.The sensitivity and specificity for detecting hyperopia were 90.52%and 83.51%;for detecting myopia were 95.60%and 90.24%;for detecting astigmatism were 79.40%and 90.21%;for detecting high myopia were 98.16%and 98.91%respectively.CONCLUSION:These findings suggest that both Grand Seiko and Topcon autorefractor can be used in large-scale vision screening for detecting refractive error in Chinese population.Grand Seiko gives relatively better performance in detecting myopia,hyperopia,and high myopia for school age children.

关 键 词：MYOPIA vision screening autorefraction spherical equivalent Grand Seiko WAM-5500 

分 类 号：R778.1[医药卫生—眼科]