VEP验光方法在常见眼外伤矫正视力检测中的应用研究  

An Applied Study on Examination in Corrected Visual Acuity of Conventional Ocular Trauma with VEP Optometry

作　　者：张泽润[1] 张玲莉[1] 饶广勋[1] 

机构地区：[1]华中科技大学同济医学院法医学系临床法医学教研室,湖北武汉430030

出　　处：《证据科学》2008年第3期355-360,共6页Evidence Science

摘　　要：目的通过比较VEP验光、电脑验光及主觉插片验光在检测外伤眼屈光度中的关系,探讨VEP验光方法在外伤眼矫正视力中的应用价值。方法本组实验选取各种类型眼外伤患者,伤后3～6月经检查存在视力下降者61人(受检眼61只),分别对伤眼行电脑验光、主觉播片验光及VEP验光,比较三种验光方法所测屈光度及矫正视力之间的差异性。结果经统计学处理,VEP验光与主觉插片验光所测伤眼屈光度和矫正视力无显著性差异(P>0.05);电脑验光与主觉验光、VEP验光在球镜屈光度检查上存在显著性差异(P<0.05),在散光检查方面无明显差异(P>0.05);电脑验光所得矫正视力与主觉插片验光、VEP验光所得结果之间均存在显著性差异(P<0.05),尤其在角膜、虹膜睫状体、晶状体、玻璃体等部位损伤的受检眼中差异更为显著(P<0.01)。结论电脑验光和VEP验光均是客观的屈光检查方法,前者有方便迅速的优点,但其结果存在较大误差,特别是在屈光系统损伤的患者中误差更大,仅可作为屈光矫正的初步检查依据;而后者验光结果准确,能够反映伤眼的屈光实际情况,可以应用于法医学鉴定中的伤眼最佳矫正视力的评定。Objective To investigate the application value of VEP optometry for corrected vision of traumatic eyes through researcbing the relationship of VEP optometry, computer optometry and subjective optometry to examine such eyes. Methods 61 persons with digressions of acuity of vision who endured various kinds of ocular trauma 3-6 mouths ago （61 examined eyes） were examined by VEP optometry, computer optometry and subjective optometry. Compare variability of diopter and corrected vision by these three optometry methods. Results Analysis by statistics showed： There was no statistically significant difference of results observed between the diopter and corrected vision obtained by VEP optomety and subjective optometry （P〉0.05）; Significant differences existed between the results of VEP optometry and computer optometry and the results of subjective optometry and computer optometry （P〈0.05）,but it was not significant in the examination of astigmatism（P〉0.05）; The differences of corrected vision between VEP optometry and computer optometry and between subjective optometry and computer optometry were significant too （P〈0.05）.The differences were more especially significant in the eyes which were injured in such locations as cornea, corpus ciliare choroideae, lens and vitrina ocularis （P〈0.01）. Conclusion Computer optometry and VEP optometry are both objective methods for examination of refraction. The former is convenient and rapid, but has more errors in the results, especially in patients whose dioptric system has been impaired. Therefore it only can be used as the basis of initial examination in corrected refraction. The latter is so accurate that it can reflect the true refraction of injured eyes and can be used to evaluate the best corrected vision in forensic identification.

关 键 词：眼外伤 VEP验光 电脑验光 主觉插片验光 矫正视力 

分 类 号：D919.4[医药卫生—法医学]