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目的分析眼动追踪仪测量的青年受试者包括正视者与迟发性近视者AC/A的差异。设计横断面调查研究。研究对象选取40例年轻受试者,根据问卷调查和验光结果分为正视组(17例)和迟发性近视组(23例)。方法使用Model310眼动追踪仪测量不同距离的调节性辐辏,使用红外自动验光仪测量不同距离的调节反应,获得刺激性AC/A(AC/AS)和反应性AC/A(AC/AR)。主要指标调节性辐辏、调节反应、AC/A。结果迟发性近视组和正视组的AC/AS分别为4.8472和4.6533,AC/AR分别为7.4733和7.5385,两个比值在组间均无显著性差异(P=0.767,0.959),两组在各调节刺激水平的调节反应也无显著性差异(P=0.728),AR/AS曲线斜率较为接近。结论眼动追踪仪测量的AC/A在正视组和迟发性近视组之间无显著性差异,AC/A不是体现两者差异的参数。
Objective To analyze the differences of AC / A in young subjects measured by eye tracker including frontal and late-onset myopia. Design cross-section investigation. Subjects were selected 40 young subjects, according to the questionnaire and optometry results were divided into positive group (17 cases) and delayed myopia group (23 cases). Methods The Model310 eye tracker was used to measure the accommodative eyelid at different distances. Infrared autorefractor was used to measure the accommodative response at different distances to obtain stimulatory AC / A and AC / AR. The main indicators of accommodative convergence, regulation response, AC / A. Results The AC / AS of the delayed myopia group and the positive group were 4.8472 and 4.6533, respectively. The AC / AR values were 7.4733 and 7.5385 respectively. There was no significant difference between the two groups in the two groups (P = 0.767,0.959) There was no significant difference (P = 0.728) in the regulation response of each regulation level, and the slope of AR / AS curve was close. Conclusion The AC / A measured by eye tracker has no significant difference between orthoptic group and delayed myopia group. AC / A is not a parameter that reflects the difference between the two groups.