显示屏蓝光衰减对数字眼疲劳的影响  

Effect of blue-blocking display mode screen on digital eye fatigue

作　　者：张伟[1] 甄毅[1] 杜丽华[1] 王宁利[1] Zhang Wei;Zhen Yi;Du Lihua;Wang Ningli(Beijing Institute of Ophthalmology,National Engineering Research Center for Ophthalmology,Engineering Research Center of Ophthalmic Equipment and Materials,Ministry of Education,Beijing Tongren Eye Center,Beijing Tongren Hospital,Capital Medical University,Beijing 100730,China)

机构地区：[1]首都医科大学附属北京同仁医院、北京同仁眼科中心、北京市眼科研究所、国家眼科诊断与治疗工程技术研究中心、眼科诊疗设备与材料教育部工程研究中心,100730

出　　处：《眼科》2023年第4期299-304,共6页Ophthalmology in China

摘　　要：目的 对比平板电脑显示屏普通显示模式与蓝光衰减显示模式在阅读使用时人眼数字眼疲劳的差异。设计二阶段交叉设计临床试验。研究对象18~36岁健康受试者74人。方法受试者按随机数字表法分为两组。第一组38人,先使用显示屏普通模式、后使用蓝光衰减模式阅读相同的文字40分钟;第二组36人,相反顺序观看。阅读前和阅读后3分钟内采用标准视力表检查视力,开放式自动验光仪检查屈光度并计算调节反应,闪光融合频率计检测闪光融合频率。Likert量表记录主观眼疲劳评分。根据受试者的阅读速度与正确率的乘积计算阅读效率。主要指标屈光度、矫正视力、调节反应、闪光融合频率、阅读效率、眼疲劳量表评分。结果使用普通模式,阅读前后屈光度分别为(-0.26±0.47)D和(-0.26±0.49)D,矫正视力分别为1.04(1.0,1.2)和1.03(1.0,1.2),闪光融合频率分别为(29.03±2.84)Hz和(29.07±3.03)Hz,差异均无统计学意义(P=0.742、0.058、0.731);调节反应均为滞后,阅读后(1.05±0.42)D高于阅读前的(0.94±0.36)D(P=0.002);阅读后眼疲劳主观评分2.04(1.00,3.00)显著高于阅读前的0.73(0,1.00)(P<0.001)。使用蓝光衰减模式,阅读前后屈光度分别为(-0.21±0.49)D和(-0.25±0.48)D,调节滞后分别为(0.98±0.39)D和(1.03±0.43)D,矫正视力分别为1.05(1.0,1.2)和1.04(1.0,1.2),闪光融合频率分别为(29.06±2.91)Hz和(29.15±3.08)Hz,差异均无统计学意义(P=0.144、0.109、0.096、0.432);阅读后眼疲劳主观评分1.64(1.00,2.00),显著高于阅读前的0.81(0,1.00)(P<0.001)。将不同模式组间的前后眼部参数变化量及阅读效率进行交叉比较,两种模式引起的屈光度、调节滞后、矫正视力变化量差异均无统计学意义(P均>0.05);闪光融合频率、阅读效率差异均无统计学意义(P均>0.05)。使用普通模式眼疲劳评分变化量明显高于使用蓝光衰减模式(P=0.015)。结论使用蓝光衰减后的显示屏短�Objective To compare the difference of digital eye strain between blue-blocking mode and normal mode screen when using for reading task.Design A two-stage cross-designed clinical trial.Participants 74 healthy subjects aged 18~36 years old.Methods The subjects were randomly divided into two groups.38 subjects(group 1)used normal mode first,and then used blue-blocking mode(400-500 nm 33.9%attenuated)to perform a 40-minute text reading.The second group(36 subjects)performed the task in the reverse order.The corrected visual acuity of the subjects was examined using a standard visual acuity chart.An open-field auto refractor was used to measure the refraction and accommodative lag.The subject's critical flicker frequency(CFF)was measured using a flash fusion frequency meter.These data were recorded within 3 minutes before and after reading.Likert scale was used to record subjective eye strain scores before and after reading.Reading efficiency was defined as a product of reading accuracy and reading rate per minute.Main Outcome Measures Refraction,corrected visual acuity,accommodative lag,critical flicker frequency,eye strain scale score,reading efficiency.Results Using normal mode,the diopter before and after reading was(-0.26±0.47)D and(-0.26±0.49)D,respectively(P=0.742);The accommodative lag before and after reading was(0.94±0.36)D and(1.05±0.42)D,respectively(P=0.002);The corrected visual acuity was 1.04(1.0,1.2),1.03(1.0,1.2),respectively(P=0.058);The CFF was(29.03±2.84)Hz and(29.07±3.03)Hz,respectively(P=0.731).The subjective score of eye strain before and after reading was 0.73(0,1.00)and 2.04(1.00,3.00),respectively(P<0.001).The mean value of eye strain score increased after reading,and the difference was statistically significant.Using blue-blocking mode,the diopter before and after reading was(-0.21±0.49)D and(-0.25±0.48)D,respectively(P=0.144),the accommodative lag was(0.98±0.39)D and(1.03±0.43)D,respectively(P=0.109),and the corrected visual acuity was 1.05(1.0,1.2),1.04(1.0,1.2),respectively(P=0

关 键 词：数字眼疲劳 蓝光衰减 

分 类 号：R77[医药卫生—眼科]