Expansion of Peripheral Visual Field with Novel Virtual Reality Digital Spectacles
Expansion of Peripheral Visual Field with Novel Virtual Reality Digital Spectacles
复制标题
DOI：
10.1016/j.ajo.2019.10.006
复制
发表时间：
2020-02-01
影响因子：
4.2
通讯作者：
Abou Shousha, Mohamed
中科院分区：
文献类型：
--
作者：
Sayed, Ahmed M.;Abdel-Mottaleb, Mostafa;Abou Shousha, Mohamed
目的：研究利用新型虚拟现实数字眼镜（DSpecs）扩展周边视野（VF）的图像重映射方法，以改善青光眼患者的视觉意识。设计：前瞻性病例系列。方法：使用头戴式显示器诊断算法测量和定义单眼外周VF缺陷。利用单眼视场计算重映射参数，并使用自定义算法对剩余视场内未见的外围目标进行重新定位和调整。对23例典型青光眼缺陷患者进行了单眼VF序列检测和自定义图像重映射。测试图像显示了道路和汽车，以确定戴上DSpecs后对周边危险的意识增加。通过重新映射的图像，患者识别和计数周围物体的得分是主要的结果测量。结果：诊断性单眼VF测试算法与基于逐点评估的阈值灵敏度的标准自动周长测定相当。23名患者中有18名（78%）可以通过DSpecs识别出他们以前无法识别的安全隐患。使用DSpecs后，识别周边物体的能力得到了提高（P = 0.024，斜方检验）。DSpecs改善了外围物体数量的量化（P = 0.0026， Wilcoxon秩和检验）。结论：新型眼镜可通过扩大青光眼患者的功能视场，增强周围物体的感知能力。(C) 2019 Elsevier Inc.版权所有。
PURPOSE: To examine an image remapping method for peripheral visual field (VF) expansion with novel virtual reality digital spectacles (DSpecs) to improve visual awareness in glaucoma patients.DESIGN: Prospective case series.METHODS: Monocular peripheral VF defects were measured and defined with a head-mounted display diagnostic algorithm. The monocular VF was used to calculate remapping parameters with a customized algorithm to relocate and resize unseen peripheral targets within the remaining VF. The sequence of monocular VF was tested and customized image remapping was carried out in 23 patients with typical glaucomatous defects. Test images demonstrating roads and cars were used to determine increased awareness of peripheral hazards while wearing the DSpecs. Patients' scores in identifying and counting peripheral objects with the remapped images were the main outcome measurements.RESULTS: The diagnostic monocular VF testing algorithm was comparable to standard automated perimetric determination of threshold sensitivity based on point-by-point assessment. Eighteen of 23 patients (78%) could identify safety hazards with the DSpecs that they could not previously. The ability to identify peripheral objects improved with the use of the DSpecs (P = 0.024, chisquare test). Quantification of the number of peripheral objects improved with the DSpecs (P = 0.0026, Wilcoxon rank sum test).CONCLUSIONS: These novel spectacles may enhance peripheral objects awareness by enlarging the functional field of view in glaucoma patients. (C) 2019 Elsevier Inc. All rights reserved.