Monocular Visual Confusion for Field Expansion

用于视野扩展的单眼视觉混乱

• 批准号: 10030789
• 负责人: Jae-Hyun Jung
• 金额: $ 44.33万
• 依托单位: SCHEPENS EYE RESEARCH INSTITUTE
• 依托单位国家: 美国
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10030789
• 关键词: 3-Dimensional; 3D Print; Affect; Appearance; Behavior; Bilateral; Binocular rivalry; Clinical Trials; Clip; Confusion; Crowding; Cues; Detection; Devices; Elements; Eye; Homonymous Hemianopia; Image; Individual; Methods; Monitor; Monocular Vision; Motion; Motor; Nose; Optics; Patients; Performance; Peripheral; Quality of life; Randomized Controlled Clinical Trials; Reporting; Risk; Side; Source; System; Testing; Training; Vision; Vision Disparity; Visual; Visual Aid; Visual Fields; Walking; base; blind; effectiveness testing; flexibility; gaze; head mounted display; improved; mixed reality; monocular; novel; simulation; stereoscopic; success; transmission process; virtual; virtual reality

PROJECT SUMMARY/ABSTRACT Individuals with visual field loss report collisions with other pedestrians or objects and are commonly not permitted to drive. All of these factors severely restrict their independence and quality of life. Various visual aids developed for field expansion to detect collision in mobility but had limited success. The novel concept of vision multiplexing by shifting, combined with binocular visual confusion, has been a proven effective aid for patients with homonymous hemianopia. This approach uses peripheral unilateral prisms (prisms on one eye) and thus shows a shifted view from the blind field in the eye with the prism while the fellow eye sees the normal view. With binocular visual confusion, patients with homonymous hemianopia sees both shifted view and normal view together and achieve true field expansion using unilateral prisms. However, this approach results in the rivalry between two different views from two eyes, which alternates and reduce the detection performance in half. To overcome this limitation, we invented a new optical element, multiplexing prism, which provides simultaneous (monocularly) superimposed views of the shifted and direct see-through fields of view. Bilateral fitting of multiplexing prisms (prisms on both eyes) shows both shifted and see-through views in each eye and thus may reduce the binocular rivalry and provide three-dimensional information of shifted and see-through views. However, as a trade-off, the contrast of each view is reduced in half. Here, we will study the impact of these factors on the collision detection in field expansion of patients with homonymous hemianopia using virtual reality walking simulator and find the best configuration with less rivalry. The multiplexing prism is also the only possible field expansion solution for patients with acquired monocular vision. Losing sight of an eye is one of the common field loss in the US and increase the risk of collision with other pedestrians from the nasal side of the seeing eye. Since the multiplexing prism provides both see-through and shifted views simultaneously, fitting the multiplexing prism on the nose bridge provides recover of the visual field up to 90°, which recovers almost normal binocular visual field size. Here we propose to implement, tune, and test the effectiveness of the multiplexing prism as an aid for patients with acquired monocular vision and develop a hang-on multiplexing prism glasses for easy wearing/taking off. We will test the device in a clinical trial with virtual reality walking simulator.

项目摘要/摘要 具有视觉现场损失报告与其他行人或物体发生冲突的人，通常不是 被允许开车。所有这些因素都严重限制了它们的独立性和生活质量。各种视觉 为田间扩展而开发的艾滋病以检测出流动性的碰撞，但成功的成功有限。新颖的概念 视力通过转移而与双眼视觉混乱相结合，已被证明是有效的帮助 同源性脱氧核心的患者。这种方法使用外围单侧棱镜（一只眼睛的棱镜） 因此，与棱镜一起从眼睛中的盲目田地展示了一个转变的视野，而同伴的眼睛看到 正常视图。由于双眼视觉混乱，同义偏半型的患者都可以看到观看次数的转变 并使用单方面的棱镜一起进行正常视图，并实现真正的现场扩展。但是，这种方法 导致两只眼睛的两种不同视图之间的风险，它们替代并减少检测 表现为一半。 为了克服这一限制，我们发明了一个新的光学元素，多重棱镜，该棱镜提供了 同时（单眼）叠加了转移和直接透明领域的视图。双边 拟合多重棱镜（两只眼睛的棱镜）在每只眼睛中都显示出改变和透明的视图 因此，可能会降低双眼风险，并提供转移和透明的三维信息 视图。但是，作为一个权衡，每种观点的对比度降低了一半。在这里，我们将研究 这些因素在使用同源性偏见的患者现场扩展中检测到的这些因素 虚拟现实行走模拟器，并找到最佳的配置，而现实较少。 多路复用棱镜也是获得获得的患者的唯一可能的现场扩展解决方案 单眼视力。失去眼睛是美国常见的野外损失之一，并增加了 与鼻眼的鼻形一侧的其他行人相撞。由于多重棱镜提供了 透明和移动的视图都简单地适合鼻桥上的多重棱镜提供 恢复高达90°的视野，这将恢复几乎正常的双眼视野大小。我们在这里提出 实施，调整和测试多重棱镜作为获得的患者的辅助 单眼视力并开发悬挂的多重棱镜眼镜，以便于佩戴/起飞。我们将测试 该设备在临床试验中使用虚拟现实行走模拟器。