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The Measurement and Treatment of Suppression in Amblyopia
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在接受治疗的儿童中,高空间频率的轮整合缺陷是针对异型视症治疗的儿童
Shu-Qi Jiang1, Yan-Ru Chen1, Xiang-Yun Liu2
1School of Psychological and Cognitive Sciences and Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing, China.
Frontiers in neuroscience
|August 11, 2023
概括
接受治疗的儿童的异观眼症表现出持续的轮整合缺陷,即使考虑到基本视力障碍. 这些缺陷表明需要超越标准治疗的新疗法来改善全球视觉处理.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 视觉科学 视觉科学
背景情况:
- 无光度视 (anisometropic amblyopia) 是儿童视力减弱的常见原因,通常用折射校正和/或闭塞疗法治疗.
- 虽然这些治疗改善视觉敏,但对更高层次的视觉处理的影响,如轮整合,仍然不太了解.
研究的目的:
- 为了调查是否治疗异型眼盲的儿童在轮整合方面有缺陷.
- 区分轮整合缺陷与低水平视觉障碍,如对比度降低的敏感性和形状感知.
主要方法:
- 心理物理方法被用来评估13名患有异型视的儿童和13名年龄相匹配的对照的轮整合.
- 刺激包括Gabor补丁来测量对比度值和在噪声和空白场中的轮形状的歧视.
- 用各种空间频率 (1.5,3,6 cpd) 对眼,同眼和对照眼进行测量.
主要成果:
- 眼的眼睛在更高的空间频率 (6cpd) 上显示出对比度缺陷和形状感知障碍.
- 在最小化低水平缺陷后,在3和6cpd时在双眼眼中观察到轮整合缺陷.
- 这些缺陷独立于敏度,对比度灵敏度,立体敏度和视觉拥挤,同眼的表现与对照相比.
结论:
- 接受治疗的儿童的异观眼保持了轮整合缺陷,特别是在更高的空间频率,这表明全球视觉处理受损.
- 这些缺陷似乎与基本视力敏度和对比度敏感度的损失不同.
- 目前的治疗方法可能不足以完全恢复,这突出了针对轮整合的有针对性的干预措施的需要.
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