屈光参差性弱视儿童治疗后双眼视觉输入平衡分析

发布时间：2019-08-24 16:11

【摘要】：目的探讨轻、中度屈光参差性弱视儿童经屈光矫正合并遮盖治疗弱视眼的视锐度恢复到相应正常水平后,双眼视觉输入是否达到平衡状态。方法选择成功治疗半年以上,视锐度恢复到相对稳定状态的轻、中度屈光参差性弱视儿童为弱视治疗组(n=15)。正常对照组选择相应年龄段的正常儿童(n=15)。受试者配戴立体眼镜,通过阈上双眼相位结合的方法对其进行双眼相互作用的检测。所有试验信息由计算机系统自动记录,最终进行模型分析得到双眼的有效对比度比,将其作为评价双眼视觉输入平衡的主要指标。结果弱视治疗组治疗后弱眼和强眼的视锐度分别为(-0.02±0.06)log MAR和(-0.05±0.05)log MAR,弱视治疗后双眼的视锐度差异无统计学意义(P0.05)。与正常对照组相比,经屈光矫正合并遮盖治疗后,虽然屈光参差性弱视儿童弱眼的视锐度得到了较好的恢复,但是其双眼视觉输入依然不平衡。弱视治疗组弱眼的有效对比度比为0.27±0.09,正常对照组的有效对比度比为(0.95±0.07)。与正常对照组相比,弱视治疗组弱眼的平均有效对比度比降低了72%,差异有显著统计学意义(P0.001)。结论经屈光矫正合并遮盖治疗视锐度恢复正常后的轻、中度屈光参差性弱视儿童,双眼输入的信号强度依然是不平衡的,双眼视觉功能依然存在缺陷。这种双眼输入信号强度的不平衡可能是儿童弱视易复发的一个潜在因素。
[Abstract]:Objective To study whether the visual acuity of the eyes with mild and moderate anisometropic amblyopia is restored to the corresponding normal level after the visual acuity of the amblyopia eye is restored to the corresponding normal level. Methods After the successful treatment for more than half a year, the visual acuity was restored to a relatively stable state, and the moderate and moderate anisometropic amblyopia was treated as an amblyopia treatment group (n = 15). The normal control group selected normal children of the corresponding age group (n = 15). The subject was subject to three-dimensional glasses, and the two-eye interaction was detected by a method of subthreshold binocular phase-binding. All the test information is automatically recorded by the computer system, and the effective contrast ratio of the two eyes is obtained by the model analysis, and is used as the main index for evaluating the binocular visual input balance. Results The visual acuity of the weak and strong eyes were (-0.02-0.06) log MAR and (-0.05-0.05) log MAR respectively after the treatment of the amblyopia treatment group, and the visual acuity of the eyes after the treatment of the amblyopia was not statistically significant (P0.05). Compared with the normal control group, the visual acuity of the weak eye of the children with anisometropic amblyopia was better restored, but the visual input of the two eyes was still not balanced. The effective contrast ratio of the weak eyes in the amblyopia treatment group was 0.27-0.09, and the effective contrast ratio of the normal control group was (0.95-0.07). Compared with the normal control group, the average effective contrast ratio of the weak eyes in the treatment group was 72%, and the difference was significant (P 0.001). Conclusion The signal intensity of the two eyes is still unbalanced, and the visual function of the two eyes still has the defect. The imbalance of the signal intensity of the two eyes may be a potential factor for the easy recurrence of the children's amblyopia.
【作者单位】：山东中医药大学;山东中医药大学眼科研究所;山东中医药大学附属眼科医院;
【基金】：国家自然科学基金资助(编号:81173440) “十二五”国家科技支撑计划(编号:2015BAI04B04) 山东省科技发展计划(编号:2013GSF11857);山东省科技发展计划基金资助(编号:2014GGH219004)~~
【分类号】：R777.44

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