人眼对镜片度数变换敏感度阈值的探索及使用小进阶镜片的临床研究  

Exploration of Sensitivity Threshold of Human Eyes to the Change of Spectacle Lens Diopter and Clinical Study of Effect of Using Small Gradient Lenses

作　　者：姚婷婷 王继红 Tingting Yao;Jihong Wang(Department of Ophthalmology,Affiliated Hospital of Jiangnan University,Wuxi 214122,China)

机构地区：[1]江南大学附属医院眼科,无锡214122

出　　处：《中华眼视光学与视觉科学杂志》2023年第1期56-61,共6页Chinese Journal Of Optometry Ophthalmology And Visual Science

基　　金：无锡市卫生健康委妇幼健康科研项目(FYKY201903);无锡市卫生健康委科技成果与适宜技术推广项目(T201901);无锡市财政局、无锡市科技局医疗与公众健康技术创新应用项目(N20192030)。

摘　　要：目的:测量人眼对镜片度数改变的敏感度阈值,研究小进阶镜片的作用。方法:自身对照研究。采用随机数表法选取2021年1—12月在江南大学附属医院眼科门诊就诊的患者100例,每人随机选1眼作为受试眼。将所有受试眼按屈光度分为3组:低度远视组34眼,低度近视组32眼,中度近视组34眼。使用0.05 D进阶试镜箱对受试者双眼进行非睫状肌麻痹状态下的主觉验光。红绿平衡时在受试眼上叠加0.05 D镜片,通过观察红绿视标清晰度的变化进行敏感度阈值检测,若不可达红绿平衡,说明敏感度阈值小于0.05 D。分别在0.25 D和0.05 D进阶处方上,对100只受试眼分别进行矫正视力、对比敏感度、视功能检测、双眼平衡对比。数据采用Wilcoxon符号秩和检验进行分析。结果:95%眼对度数改变的敏感度阈值在0.05 D及以下,屈光度与敏感度阈值无相关性(P>0.05)。0.05 D进阶处方相比0.25 D进阶处方,矫正视力(Z=-7.40,P<0.001)和4种空间频率(3、6、12、18 c/d)下对比敏感度更好(均P<0.001);0.05 D进阶处方和0.25 D进阶处方对调节灵敏度、调节幅度和调节性集合/调节的影响差异均无统计学意义(P>0.05)。0.05 D进阶处方比0.25 D进阶处方,使人更容易获得双眼平衡(r=0.44,P<0.001)。结论:在不影响视功能的情况下,小进阶的镜片更精准,提供更高清的视觉体验和双眼等同的清晰度。Objective:To measure the sensitivity threshold of human eyes to the change of spectacle lens diopter,and to study the significance of small gradient lenses.Methods:In this self-control study,a total of 100 patients were selected from the ophthalmic clinic of Affiliated Hospital of Jiangnan University from January to December 2021,and one eye was randomly selected as the test eye.All the test eyes were divided into three groups according to diopter:low hyperopia group(34 eyes),low myopia group(32 eyes)and moderate myopia group(34 eyes).Subjective optometry under non-cycloplegic state was performed in both eyes of the subjects using 0.05 D gradient lenses.Superimpose a piece of 0.05 D lens on the subjects'eyes when the red-green balance was achieved,and the sensitivity threshold was tested by observing the change of the clarity of the red-green visual target.If the red-green balance could not be achieved,the sensitivity threshold was less than 0.05 D.Self comparative study was used to compare the corrected visual acuity,contrast sensitivity,visual function test and the binocular balance of these one hundred subjects'eyes with the 0.25 D and 0.05 D gradient lenses respectively.Wilcoxon signed rank sum test was used to analyze data in each experiment.Results:Ninty-five percent of the subjects'eyes had a sensitivity threshold of 0.05 D and less to the change of spectacle lens diopter,and there was no correlation between diopter and sensitivity threshold.The 0.05 D gradient prescription had better corrected visual acuity(Z=-7.40,P<0.001)and contrast sensitivity at four spatial frequencies(3,6,12,18 c/d)than the 0.25 D gradient prescription(all P<0.001).There were no significant differences in accommodation flexibility,amplitude and accommodative vergence/accommodative between 0.05 D gradient prescription and 0.25 D gradient prescription(P>0.05).Binocular balance was easier to be achieved with the 0.05 D gradient prescription than the 0.25 D gradient prescription(r=0.44,P<0.001).Conclusions:Without affecting visual func

关 键 词：小进阶镜片 敏感度阈值 视功能检测 自身对比研究 

分 类 号：R778.3[医药卫生—眼科]