不同类型视标对交叉柱镜检查精确度的影响  

Influence of different fixation targets in accuracy of Jackson cross cylinder examination

作　　者：吴荒[1] 邱迎红[2] 岳志强[3] 

机构地区：[1]吉林大学第二医院视光学科,吉林长春130041 [2]河北省邢台市眼科医院验光室,河北邢台054001 [3]河北省邢台市眼科医院眼外伤科,河北邢台054001

出　　处：《吉林大学学报（医学版）》2009年第5期945-948,共4页Journal of Jilin University：Medicine Edition

基　　金：吉林省科技厅科研基金资助课题(200705210)

摘　　要：目的：探讨蜂窝黑点状视标、最佳矫正视力上一行视标以及包含最佳矫正视力的多行视标对交叉柱镜检查结果的影响。方法：选择本院眼科硕士研究生及进修医生40名（男性11名,女性29名,年龄24-29岁）,采用常规的综合验光仪检查方法,在最大正镜最佳矫正视力（MPMVA）状态下,随机确定3种视标的检查顺序,如发现不同视标的检查结果不一致,则采用散光表帮助判断何种结果残余散光量最小。结果：40名被检者共80眼,其中无散光眼（柱镜度数小于0.25 DC）12只。在其余68眼中,对3种视标反应相同的有19眼（27.9%）;对蜂窝黑点状视标最敏感有23眼（33.8%）;对最佳矫正视力上一行视标最敏感有14眼（20.6%）;对包含最佳矫正视力的多行视标最敏感有12眼（17.6%）。采用非参数检验中的Kruska Wallis Test对数据进行分析得出,三者间对交叉柱镜检查结果的准确程度无显著性差异（χ^2=4.026,P〉0.05）。结论：尽管3种视标对于交叉柱镜检查结果的准确程度差异尚无显著性,但综合考虑检查效率、医患交流的难易程度、视标判断的难易程度,推荐首选蜂窝黑点状视标作为交叉柱镜的检查视标。jective To evaluate the influence of black dots,isolated line above the best correct visual acuity and multiple lines containing the best correct visual acuity in the accuracy of Jackson cross cylinder examination.Methods Forty students were chosen（11 males,29 females,between 24 to 29 years old）.Routine examination of phoropter was used to check under the maximum plus to maximum visual acuity（MPMVA） status.The sequence of three fixation targets was chosen randomly.Astigmatism chart was used to judge the best one when the different results were obtained.Results Among the 80 eyes of 40 students,12 eyes were spherical（the cylinder degree below 0.25 DC）.The response of three fixation targets was the same in 19 eyes（27.9%）,23 eyes（33.8%）were sensitive to the black dots target,14 eyes（20.6%）were sensitive to the isolated line above the best correct visual acuity,12 eyes（17.6%） were sensitive to multiple lines containing the best correct visual acuity.Kruska Wallis Test was used to detect the difference among three groups.No significant difference was found（χ^2 =4.026,P=0.134）.Conclusion According to the efficiency of examination,communication and judgment,black dots target is recommended although no difference is detected among three fixation targets.

关 键 词：主觉验光 交叉柱镜 雾视 视力 

分 类 号：R778.2[医药卫生—眼科]