目的:分析在校大学生不同屈光状态与调节幅度、立体视的关系。方法:对入选的150名在校大学生行客观验光、综合验光及相关双眼视功能的检查,包括立体视、调节幅度等的测量。按是否有近视分为:(1)正视组(11名),+0.75D≤SE(等效球镜度数)<-0.50D;(2)近视组(139名),SE≥-0.5D。近视组中按近视的度数分为:低度近视组(51名),中度近视组(69名),高度近视组(19名)。按是否有屈光参差分为:非屈光参差组(123名),屈光参差组(27名)。分析研究不同屈光状态学生的调节幅度、立体视的状况以及屈光参差对立体视的影响。结果:近视组的调节幅度较正视组的调节幅度大,差异有统计学意义(t=1.16,P<0.05),近视组间调节幅度值有差异(F=1.474,P<0.05),其中高度近视组与低度近视组、中度近视组之间差异有统计学意义(P<0.05),近视度数越大,测得的调节幅度值越大(r=0.2698,P<0.05);正视组与近视组之间立体视无显著差异(χ2=0.325,P>0.05),低、中、高度近视组之间立体视无显著差异(χ2=0.16,P>0.05);屈光参差组的立体视功能比非屈光参差组差,差异有统计学意义(Fisher,P<0.05)。结论:近视组较正视组的调节幅度大,近视组中,调节幅度与近视的度数呈正相关性。屈光参差组较非屈光参差组的立体视功能差。

AIM:To analyse the relationship between amplitude of accommodation(AMP) and stereopsis and the different refractive status of college students.METHODS:Refractive data of 150 college students were performed objective and synthetic optometry and related binocular visual functional examination including stereopsis,AMP,et al.Refractive error data were converted into spherical equivalent (SE).According to myopia existence,students were divided into emmetropia group (11 students,+0.75D≤SE<- 0.50D) and myopia group (139 students,SE≥-0.5D).According to refractive status,myopia were subdivided into low myopia of 51 cases (-0.5D≤SE≤-3.0D),moderate myopia of 69 cases (-3.0D<SE≤- 6.0D),and high myopia of 19 cases(SE>- 6.0D).Depending on whether there was anisometropia or not,subjects was defined as anisometropic group of 27 cases(spherical degree difference was≥-1.5D,cylinder degree difference was≥-1.0D)and non-anisometropic group of 123 cases(spherical degree difference was<1.5D,cylinder degree difference was<1.0D).Then the different binocular visual functions of the different groups were analysed.RESULTS:The AMP of emmetropia was lower than that of myopia group(t= 1.16,P<0.05).There was difference in the AMP among the three subdivided groups of myopia (F=1.474,P<0.05).The deeper degree of myopia,the higher level of AMP,but only the high myopia had significant difference from the other ones(P<0.05).There was no significant difference in stereopsis between emmetropia and myopia (χ2=0.325,P>0.05).There were no significant differences among low,moderate and high myopia (χ2=0.16,P>0.05).The anisometropia had an impact on stereopsis,people who had anisometropia had a poor stereopsis,the result was statistically significant(Fisher,P<0.05).CONCLUSION:The AMP of emmetropia is lower than the myopia group.In myopia,the AMP and the degree of myopia is positively correlated.People who have anisometropia have a poor stereopsis.

R778.11