摘要目的 探讨外斜V征患者眼底客观旋转状态与V征程度及下斜肌功能变化的关系.方法 临床病例回顾性研究.于2014年10月至2015年1月在天津市眼科医院就诊的外斜V征患者50例,用三棱镜交替遮盖法测量V征程度,检查双眼运动,评估下斜肌亢进程度,行眼底照相,测量视盘黄斑夹角(fovea-disc angle,FDA).眼底客观旋转度与V征程度的相关度采用Pearson相关分析,眼底客观旋转度与下斜肌亢进程度的相关度采用Spearman相关分析.结果 外斜V征患者双眼平均FDA与V征程度之间相关系数r =0.244,P=0.088,无显著相关性.下斜肌亢进为88只眼,其中亢进+1为38只眼(-14.39±7.01)°,亢进+2为36只眼(-8.96±7.16)°,亢进+3为12只眼(-13.83±6.94)°,亢进+4为2只眼(-9.50±0.71)°.FDA与下斜肌亢进程度之间的相关系数r=-0.075,P=0.605,无显著相关性.结论 外斜V征患者眼球旋转程度并不决定V征的程度,也不影响下斜肌亢进的程度,眼球旋转更像是V征发生后的一个伴随现象.

abstractsObjective To investigate the correlation between the status of ocular torsion,the degree of V sign,and the inferior oblique muscle function in V pattern exotropia patients.Methods Fifty cases of v pattern exotropia were studied.The degree of V sign was measured with the method of prism and alternative cover.The ocular movement,assess the degree of inferior oblique muscle hyperfunction were checked,the fovea-disc angle (FDA) by fundus photograph were measured.Pearson method was used to analysis the correlation between the degree of objective ocular torsion and the degree of the V sign.Spearman method was used to analyze the correlation between the degree of objective ocular torsion and the inferior oblique muscle hyperfunction.Results There was no significant correlation between the average FDA and the degree of the V sign (r =0.244,P =0.088).There were 88 eyes with inferior oblique muscle hyperfunction:38 eyes (-14.39±7.01)° with hyperfunction +1,36 eyes (-8.96±7.16) °hyperfunction +2,12 eyes (-13.83±6.94)° hyperfunction +3,and 2 eyes (-9.50±0.71) °hyperfunction +4.There was no significant correlation between the average FDA and the degree of inferior oblique muscle hyperfunction (r =-0.075,P =0.605).Conclusions The ocular torsion in V pattern exotropia patients does not determine the degree of the V sign,also does not influence the degree of inferior oblique muscle hyperfunction.It is more like an accompanying phenomenon after the V sign.