弱视儿童双眼视平衡点的研究

doi:10. 13281/j. cnki. issn.1004-4469. 2017. 05. 002

眼科

弱视儿童双眼视平衡点的研究

林楠卢炜孙阿莉阎丽褚航张灵阁

100730首都医科大学附属北京同仁医院北京同仁眼科中心眼科学与视觉科学北京市重点实验室（林楠、卢炜、孙阿莉）；512511广州，国家医疗保健器具工程技术研究中心（阎丽、褚航、张灵阁）

收稿日期:2016-06-06 出版日期:2017-09-25 发布日期:2017-09-28
通讯作者: 林楠, Email: l_nan72@sina.com

The study of binocular rivalry of the children with amblyopia

LIN Nan¹, LU Wei¹, SUN A-li¹, YAN Li², CHU Hang², ZHANG Ling-ge²

1. Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing 100730, China; 2. National Engineering Research Center for Healthcare Devices, Guangzhou 512511, China

Received:2016-06-06 Online:2017-09-25 Published:2017-09-28
Contact: LIN Nan, Email: l_nan72@sina.com

摘要/Abstract

摘要：

目的对弱视儿童的双眼视平衡点进行评估。设计前瞻性病例系列。研究对象 眼位正常的轻度、中度、重度弱视儿童各30例。方法应用基于计算机平台的视感知觉检查方法对弱视儿童的双眼视平衡点进行检测。采用信号点闪烁光和非闪烁光图形刺激，对信号噪声比和信号对比度进行检测。主要指标 动静态信噪比平衡点值及动静态对比度平衡点值。结果（1）轻、中、重度弱视儿童静态信噪比的平衡点值分别为（6.17±1.548）级、（5.51±1.804）级、（2.08±0.935）级（H=51.526，P<0.001）；动态信噪比的平衡点值分别为（6.42±1.334）级、（5.73±1.840）级、（2.34±1.260）级（H=58.453，P<0.001）；静态对比度的平衡点值分别为（7.08±2.350）级、（6.44±2.520）级、（3.52±2.365）级（H=26.826，P<0.001）；动态对比度的平衡点值分别为（7.40±2.430）级、（7.13±2.554）级、（3.31±2.007）级（H=42.200，P<0.001）。（2）轻、中、重度弱视儿童静态信噪比双眼间级别的差值分别为（1.67±1.561）级、（2.20±1.584）级、（4.71±2.312）级（H=20.873，P<0.001）；动态信噪比双眼间级别的差值分别为（1.33±1.241）级、（1.90±1.739）级、（4.52±2.293）级（H=26.684，P<0.001）；静态对比度双眼间级别的差值分别为（2.67±1.709）级、（2.73±2.651）级、（5.48±3.329）级（H=11.116，P=0.004）；动态对比度双眼间级别的差值分别为（2.50±2.080）级、（2.72±2.534）级、（5.00±3.327）级（H=10.396，P=0.006）。结论眼位正位的弱视儿童其信噪比平衡点值及对比度平衡点值均存在异常，弱视程度越深，异常越严重。动静态信噪比及动静态对比度在双眼间级别的差值随弱视程度的加深而增大。（眼科，2017, 26： 295-298）

关键词: 弱视, 双眼视觉, 信噪比, 对比度

Abstract:

Objective To investigate the characteristics of the binocular rivalry of children with amblyopia. Design Prospective case series. Participants 90 mild, moderate, severe amblyopic children with normal eye position, each group included 30 cases. Method The main test method was the computer based visual perceptual test software, each amblyopic child must take the binocular visual balance point of dynamic signal to noise ratio, static signal to noise ratio, dynamic contrast sensitivity, static contrast sensitivity. Main Outcome Measures The measured value of each binocular visual balance point. Results (1) In mild, moderate, severe amblyopic children, the binocular balance point of static signal to noise ratio was 6.17±1.548, 5.51±1.804 and 2.08±0.935 respectively (H=51.526, P<0.001); the binocular balance point of dynamic signal to noise ratio was 6.42±1.334, 5.73±1.840 and 2.34±1.260 respectively (H=58.453, P<0.001); the binocular balance point of static contrast sensitivity was 7.08±2.350, 6.44±2.520 and 3.52±2.365 respectively (H=26.826, P<0.001); the binocular balance point of dynamic contrast sensitivity was 7.40±2.430, 7.13±2.554 and 3.31±2.007 respectively (H=42.200, P<0.001). (2) In mild, moderate, severe amblyopic children, the difference between two eyes of static signal to noise ratio was 1.67±1.561, 2.20±1.584 and 4.71±2.312 respectively (H=20.873, P<0.001); the difference between two eyes of dynamic signal to noise ratio was 1.33±1.241, 1.90±1.739 and 4.52±2.293 respectively (H=26.684, P<0.001); the difference between two eyes of static contrast sensitivity was 2.67±1.709, 2.73±2.651 and 5.48±3.329 respectively (H=11.116, P=0.004); the difference between two eyes of dynamic contrast sensitivity was 2.50±2.080, 2.72±2.534 and 5.00±3.327 respectively (H=10.396, P=0.006). Conclusion The binocular visual balance point of signal to noise ratio and contrast sensitivity was abnormal in amblyopic children with normal eye position. The more severe the degree of amblyopia, the more serious the abnormality was. The difference between two eyes of signal to noise ratio and contrast sensitivity increased with the degree of amblyopia. (Ophthalmol CHN, 2017, 26: 295-298)

Key words: amblyopia, binocular vision, signal to noise ratio, contrast sensitivity

林楠卢炜孙阿莉阎丽褚航张灵阁. 弱视儿童双眼视平衡点的研究[J]. 眼科, doi: 10. 13281/j. cnki. issn.1004-4469. 2017. 05. 002.

LIN Nan1, LU Wei1, SUN A-li1, YAN Li2, CHU Hang2, ZHANG Ling-ge2. The study of binocular rivalry of the children with amblyopia[J]. Ophthalmology in China, doi: 10. 13281/j. cnki. issn.1004-4469. 2017. 05. 002.

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弱视儿童双眼视平衡点的研究

The study of binocular rivalry of the children with amblyopia

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