对比敏感度在近视初期患者检查中的作用  

Study on the effect of contrast sensitivity in early myopia patients

作　　者：田春慧[1] 雷秀丽[1] 连丽英[1] 任芬花[1] 孙志彬[1] 徐海云[1] 袁瑞芝[1] 白玉[1] Tian Chun-hui;Lei Xiu-li;Lian li-ying(Han Dan City Eye Hospital,The Third Hospital of Han Dan,Han Dan,056001,China)

机构地区：[1]邯郸市眼科医院(邯郸市第三医院),056001

出　　处：《中国斜视与小儿眼科杂志》2018年第4期22-24,共3页Chinese Journal of Strabismus & Pediatric Ophthalmology

基　　金：河北省卫生厅科研基金项目(20150031)

摘　　要：目的分析近视初期矫正前后对比敏感度的变化。方法选取8～13岁152例(200眼)近视初期的患儿。利用美国Vector Visions公司生产的对比敏感度仪,分别测量-0. 50DS至-1. 25DS患儿视力矫正前后4种空间频率(3、6、12和18周/度)的对比敏感度(contrast sensitivity, CS),产生对比敏感度函数(contrast sensitivity function, CSF)曲线图。采用SPSS17.0统计软件进行统计分析。结果 -0.50DS的患者只有高频有统计学意义,P<0.05;低中频无统计学意义。-0.75DS的患者中频(12cpd)和高频(18cpd),有统计学意义,P<0.05;低频和中频(6cpd)无统计学意义。-1.00DS患者中频(6cpd)(12cpd)高频(18cpd)有统计学意义,P<0.05;只有低频P>0.05,无统计学意义。-1.25DS患者低中高频均有统计学意义,P<0.05。结论对比敏感度是一种较全面而敏感的视功能检查手段,近视度数越低,对高频的影响越大,而度数越高,对低中高频均有较明显的影响。为近视初期的临床干预提供了依据。Objective Investigate the change of contrast sensitivity before and after the initial correction of myopia. Methods 152 children(200 eyes) aged 8 ~ 13 years old with early myopia were selected. All patients were measured with the contrast sensitivity instrument manufactured by American Vector Visions Company. the contrast sensitivity(CS)of 4 spatial frequencies(3, 6, 12 and 18 cycles/degree) before and after vision correction. SPSS 17. 0 statistical software was used for statistical analysis. Results-0. 50 DS patients had only high frequency(P<0. 05) and no statistical significance at low and medium frequencies. The middle frequency(12 cpd) and high frequency( 18 cpd) of patients with-0. 75 DS were statistically significant(P<0. 05), while the low frequency and middle frequency(6 cpd) were not statistically significant.-1.00 DS patients with intermediate frequency(6 cpd)( 12 cpd) and high frequency(18 cpd)(P<0. 05) were statistically significant, with only low frequency being P>0. 05, without statistical significance.-1. 25 DS patients had statistically significant low, medium and high frequencies. Conclusions Contrast sensitivity is a more comprehensive and sensitive visual function test. The lower the myopia degree, the greater the influence on high frequency. The higher the myopia degree, the more obvious the influence on low, medium and high frequency.

关 键 词：对比敏感度 近视 屈光不正 

分 类 号：R778.11[医药卫生—眼科]