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图案视觉唤起的潜力和形敏感性在眼

Manisha Dahal¹, Hira Nath Dahal², Pragati Gautam²

¹B.P. Koirala Lions Centre for Ophthalmic Studies, Department of Ophthalmology, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal. mdahal776@gmail.com.

Documenta ophthalmologica. Advances in ophthalmology

|August 28, 2023

概括

双眼盲的眼睛表现出较低的模式视觉唤起潜能 (VEP) 幅度和延迟的峰值时间,与皮敏感性相关. 叶敏感性可能是一个比单独使用VEP更有效的诊断眼的诊断措施.

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:

眼,或"惰的眼睛",的特点是视力敏度降低和一只或两只眼睛的眼敏感性.
斜视和异度眼镜视是常见的形式,影响视觉发育和功能.

研究的目的:

为了研究眼视觉敏感度和模式视觉唤起潜力 (VEP) 之间的关系,在有斜视和异度视野的人.
为了比较两眼眼睛,同眼睛和对照眼睛之间的VEP和foveal值测量.

主要方法:

招募了45名参与者 (7-28岁) 患有斜视野盲 (n=15),异度视野盲 (n=15) 和年龄匹配的对照 (n=15).
使用标准化设备,对每个眼睛记录了视觉唤起潜力 (VEP) 和眼值的模式.
结果在双眼眼,同伴眼和对照眼之间进行了统计比较.

主要成果:

与同伴和对照眼相比,双盲眼显示出明显较低的叶值.
与同伴和对照眼相比,在双盲眼中观察到延迟的P100峰值时间和减少的N75-P100幅度.
焦点值与P100峰值时间有显著的负相关性,与N75-P100振幅有正相关性.

结论:

眼的眼睛表现出VEP特征性异常,包括振幅降低和峰值时间延迟,这与眼敏感性降低有关.
虽然VEP测量显示出差异,但双眼眼和对照眼之间存在显著的重叠,限制了其诊断特异性.
与模式VEP测量相比,骨敏感性似乎是一个更强大的指标,用于区分眼.

关键词:

不同度的双眼视 (anisometropic amblyopia) 是一种不均度的双眼视.叶敏感度叶敏感度模式 VEP 模式 VEP 模式斯特拉比斯米阿姆布利奥皮亚是什么意思视觉唤起了潜在的潜力.

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