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虚拟现实头显的亮度和值限制用于视觉场测试

Changseok Lee¹, Liam Redden², Vivian Eng³

¹Department of Ophthalmology & Visual Sciences, Dalhousie University, Halifax, Nova Scotia, Canada.

|September 19, 2025

概括

商业上可用的虚拟现实 (VR) 设备缺乏必要的亮度容量和值灵敏度,无法进行准确的视野测试,特别是用于诊断青光眼.

科学领域:

眼科医生眼科眼科
医疗技术医疗技术医学技术
视觉科学视觉科学

背景情况:

虚拟现实 (VR) 设备越来越多地被用于视觉现场测试.
准确的亮度容量和值灵敏度对于可靠的周边测量至关重要.
当前的VR头显可能不符合临床视野评估的严格要求.

研究的目的:

评估用于临床视觉现场测试的VR设备的亮度容量和可实现的值水平.
确定当前的VR技术是否适合诊断和监测视野缺陷.

主要方法:

对用于周边测量的VR耳机进行文献审查,提取亮度数据.
在一个定制的虚拟测试环境中,经验性地评估了三款最常使用的VR耳机 (Pico Neo,Oculus Quest,HTC Vive).
使用手持计与光谱辐射计对照亮度测量,并分析了光度变化与刺激参数的亮度变化.

主要成果:

据报道,HTC Vive Pro的最大亮度为250cd/m2;然而,亮度数据不一致.
与光谱辐射计相比,手持式发光度计显著高估了发光度.
测量的亮度随着光圈大小的变化而变化,并且在外围下降;在10cd/m2的背景下,最低值为16dB (HTC Vive) 和20dB (Oculus Quest 2,Pico Neo 3).

结论:

商用VR设备不符合有效视觉场测试的亮度要求或值灵敏度.
目前的VR技术在实现中低分贝 (dB) 范围方面的局限性,阻碍了对玻璃眼等疾病的准确诊断和监测.
亮度测量和性能中的重要变量凸显了眼科应用中改进VR技术的需要.

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