解放军医学院学报2017，Vol.38Issue(1)：6-9,4.DOI:10.3969/j.issn.2095-5227.2017.01.002
空军飞行学员选拔暗环境下对比度视力分布
Contrast visual acuity of aviation candidates under dark background in pilot recruitment
摘要
Abstract
Objective To investigate the variation of visual acuity (VA) at different contrast levels under dark background in selecting aviation cadets, and to provide reference data for visual function evaluation of cadets with lens opacity. Methods One hundred and sixteen aviation candidates (232 eyes) with normal VA were enrolled. LogMAR VA was measured at 4 contrast levels (100%, 25%, 10%, 5%) under dark background with multi-functional visual acuity tester (MFVA-100). The logMAR VA at different contrast levels and the difference between the logMAR VA under dark background was analyzed.Results With contrasts of 100%, 25%, 10%,and 5%, logMAR, VAs were -0.118(0.127), 0.098(0.190), 0.360(0.204), 0.680(0.228) in right eye, respectively, and, respectively in left eye were -0.098(0.109), 0.087(0.160), 0.333(0.148), 0.645(0.238). VA decreased gradually with the decrease in the contrast level (P<0.01) and had no statistically significant difference between right and left eye at the same contrast level (P>0.05). The difference of the logMAR VA in right eye between contrast 5% and 10% was 0.333(0.190), and it was 0.453(0.135) between contrast 10% and 100% and 0.212(0.096) between contrast 25% and 100%, and, in left eye was 0.360(0.124) between contrast 5% and 10%, 0.427(0.132) between contrast 10% and 100% and 0.213(0.100) between contrast 25% and 100%, the difference of the logMAR VA among different contrast had no statistically significant difference between right and left eye (P>0.05). Conclusion In the medical selection of aviation cadets, contrast visual acuity was scientific and reliable for visual function evaluation in cadets with lens opacity.关键词
对比度视力/晶状体浑浊/招飞体检/视功能评估Key words
contrast visual acuity/lens opacity/pilot recruitment/visual function assessment分类
医药卫生引用本文复制引用
齐林嵩,杨庆红,姚璐,田青,姜彩辉,吴腾云,邹志康,王建昌..空军飞行学员选拔暗环境下对比度视力分布[J].解放军医学院学报,2017,38(1):6-9,4.基金项目
部委级资助项目 （）
全军"十二五"后勤科研重大项目(AK J11J003) （AK J11J003）
全军后勤科研重点项目(BKJ15J017 （）
BKJ15J006) Supported by Military Medical Research "12th Five-Year Plan"General Program of China(AKJ11J003) （AKJ11J003）
the Major Scientific Research Program of General Logistics Department of PLA(BKJ15J017 （）
BKJ15J006) （）
