染色刺激的失焦闪会使适应性失活.
Victor Rodriguez-Lopez1, Alfonso Hernandez-Poyatos1, Carlos Dorronsoro1,2
1Institute of Optics, Spanish National Research Council (IO-CSIC), IO-CSIC, Serrano 121, E-28006, Madrid, Spain.
Biomedical optics express
|July 27, 2023
概括
可调节镜头可以通过调整光学功率来最大限度地减少视觉闪. 这种新的闪最小化任务是可重复的,快速的,并绕过住宿,建议新的眼睛折射误差测量方法.
科学领域:
- 眼科医生 眼科 眼科
- 视觉感知 视觉感知 视觉感知
- 光学工程是指光学工程.
背景情况:
- 可调节镜头提供动态光功率调节,在眼科应用中越来越多地使用.
- 定期的失焦变化可以诱导像闪和色谱扭曲这样的感知效应.
研究的目的:
- 用可调节镜头评估人类视觉系统对定期失焦变化的反应.
- 为了研究折射误差评估的闪最小化任务.
- 将闪最小化与模糊最小化任务进行比较,并评估适应的作用.
主要方法:
- 25名受试者使用可调节的镜头来最大限度地减少从0.25D振幅和15Hz频率的色彩刺激中感知到的闪.
- 试验对象还通过黑白刺激执行了一个模糊最小化任务.
- 评估了循环症对这两项任务的影响.
主要成果:
- 闪最小化任务的重复性 (±0.17D) 比模糊最小化 (±0.49D) 高,并且更快 (38秒/重复).
- 循环损害了模糊最小化,但没有闪最小化,表明失焦闪取消了适应.
- 闪的感知因整体失焦水平而有所不同.
结论:
- 失焦闪将适应系统关闭,为客观折射误差测量提供了一个新的途径.
- 闪最小化任务展示了准确,精确和快速的眼睛折射误差评估的潜力.
- 这种方法可以改进现有的主观眼科检查技术,可能减少直接监督的需要.
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