Domdei Niklas, Sauer Yannick, Hecox Brian, Neugebauer Alexander, Wahl Siegfried
Carl Zeiss Vision International GmbH, Aalen, Germany.
Institute for Ophthalmic Research, Eberhard Karls University Tübingen, Tübingen, Germany.
Heliyon. 2024 Nov 16;10(22):e40349. doi: 10.1016/j.heliyon.2024.e40349. eCollection 2024 Nov 30.
During indoor-outdoor transitions humans encounter luminance changes beyond the functional range of the photoreceptors, leaving the individual at risk of overlooking harmful low-contrast objects until adaptation processes re-enable optimal vision. To study human visual performance during intense luminance changes, we propose a virtual reality based simulation platform. After linearization of the headset's luminance output, detection times were recorded for ten participants. The small (FWHM = 0.6°) low-contrast stimuli appeared randomly in one of four corners (±10°) after luminance changes of three magnitudes within 1 or 3 s. Significantly decreased detection times were observed for the conditions with simulated self-tinting lenses compared to lenses with fixed transmission rates after luminance decreases. In cases of luminance increases all detection times were similar. In conclusion, the proposed virtual reality simulation platform allows for studying vision during or after steep luminance changes and helps to design technical aids like self-tinting lenses.
在室内外转换过程中，人类会遇到超出光感受器功能范围的亮度变化，这使得个体有可能忽略有害的低对比度物体，直到适应过程重新实现最佳视觉。为了研究强光变化期间的人类视觉性能，我们提出了一个基于虚拟现实的模拟平台。在对头显的亮度输出进行线性化之后，记录了10名参与者的检测时间。在1秒或3秒内亮度发生三个量级的变化后，小尺寸（半高宽 = 0.6°）低对比度刺激随机出现在四个角落（±10°）中的一个。与亮度降低后具有固定透光率的镜片相比，使用模拟自动变色镜片的情况下，检测时间显著缩短。在亮度增加的情况下，所有检测时间都相似。总之，所提出的虚拟现实模拟平台能够用于研究急剧亮度变化期间或之后的视觉，并有助于设计如自动变色镜片这样的技术辅助设备。
