摘要
目的：探索不同程度屏蔽420．460nm波段蓝光镜片对人眼视功能的防护作用。方法：自身对照研究。2016年8月至2017年3月选择来自同济大学的健康大学生志愿者20例，先后在未戴镜，配戴屏蔽20％、30％、40％、60％防蓝光护目镜下，完成24个色区辨识评分和75min阅读任务。检测调节幅度、品状体调节力等指标，并做视疲劳问卷评分。采用配对秩和检验对各组数值进行分析。结果：配戴屏蔽30％、40％和60％防蓝光护目镜和未戴镜比较时，多个色区得分均低于未戴镜（P〈0．05）；而屏蔽20％与未戴镜比较，差异均无统计学意义。完成阅读任务后，在视疲劳调查问卷总得分上，屏蔽20％、30％、40％、60％蓝光得分低于未戴镜（均P〈0．05）。在用眼前后单眼调节幅度差值上、正相对调节差值上，屏蔽20％、30％、40％、60％蓝光变化幅度小于与未戴镜（均P〈0．05）；在用眼前后负相对调节差值上，40％、60％蓝光变化幅度小于未戴镜（P〈0．05）；屏蔽20％、30％蓝光和未戴镜比较差异无统计学意义。在用眼前后晶状体调节力差值上，屏蔽20％、30％、40％、60％蓝光和未戴镜相比差异无统计学意义。结论：屏蔽蓝光的波段以440nm为中心，带宽20nm，屏蔽力度20％以上时，可以改善人眼调节力、视疲劳主观症状。但屏蔽该段蓝光力度达30％以上时，会造成色差症状。
Objective： To investigate the influence of different intensities of blue light shielding on the visual function of healthy adults. Methods： This self-controlled study enrolled 20 healthy adults who were students volunteers of Tongji University from August 2016 to March 2017. The subjects completed a 75-rain reading task illuminated by blue light （440 nm） at shielding intensities of 0%, 20%, 30%, 40%, and 60%. Twenty-four color partial scoreswere calculated to detect variations in color discrimination. After completing the reading task, visual fatigue, accommodation response, and lens accommodation were assessed and compared amongthe five intensities of blue light shielding. The results were analyzed by signed-ranked test. Results： The scores of many colorswere significantly lower at blue light intensities of 30%, 40%, and 60% compared to 0% intensity shielding （P 〈 0.05）. The differences in color scores between 0% and 20% intensity shielding were not statisticallysignificant. After completing the reading task, the visual fatigue scores were lower with 20%, 30%, 40%, and 60% intensity shielding compared to 0% intensity shielding （all P 〈 0.05）. The difference between before and after reading task in accommodation amplitude and positive relative accommodation were significantly lower at 20%, 30%, 40%, and 60% intensity shielding compared to 0% shielding （P 〈 0.05）. Difference between before and after reading task in native relative accommodation were significantly lower at 40% and 60% intensity shielding compared to 0% shielding （P 〈 0.05）. The differences betweenthe before and after reading task values of the 20% and 30% shielding were not significantly different from the 0% shielding. Lastly, differences between before and after reading task in lens accommodation at 20%, 30%, 40%, and 60% intensity shielding were not significantly different from 0% shielding. Coneluslons： With blue light （centered at 440 nm） shielding of 20% to 60% intensity 20 band wavelength, the accommod
作者
陈冉冉
吴进忠
吴子敬
牛国桢
张娟
隋桂琴
毕燕龙
Ranran Chen;Jinzhong Wu;Zijing Wu;Guozhen Niu;Juan Zhang;Guiqin Sui;Yanlong Bi(Department of Ophthalmology, Tongji Hospital Affiliated with Tongji University, Shanghai 200065, China;Polaroid Technology Research and Development Center of Laiqi, Xiamen 361000, China;Department of Ophthalmology, the Second Hospital of Jilin University, Changchun 130000, China)
出处
《中华眼视光学与视觉科学杂志》
CAS
CSCD
2017年第11期656-662,共7页
Chinese Journal Of Optometry Ophthalmology And Visual Science
基金
同济大学-吉林大学-台湾来明科技科研创新项目（15082450001）
关键词
蓝光
视频终端综合征
调节力
视疲劳
辨色力
blue light
video terminal syndrome
accommodation responses
visual fatigue
color discrimination
