Development of an Improved Digital Glare Testing Device

改进的数字眩光测试装置的开发

• 批准号: 6922757
• 负责人: Michelle D Simkulet
• 金额: $ 37.67万
• 依托单位: INTERSCIENCE, INC.
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-04-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6922757
• 关键词: biomedical equipment development; clinical biomedical equipment; clinical research; digital imaging; eye laser surgery; human subject; light intensity; patient oriented research; vision disorders; vision tests; visual perception

DESCRIPTION (provided by applicant) As the popularity of refractive surgery increases, so does the need for an accurate evaluation tool for glare assessment in both the pre- and post-surgical patient. Current glare testing instrumentation does not accurately recreate physiologic conditions in the eye in the presence of glare stimuli. Based on the need for improved instrumentation that assesses visual performance without changing the optical parameters of the eye, InterScience proposes the advanced development of glare disability assessment instrumentation, based on the digital micromirror array technology. The actual means of assessment will not differ from established procedures, i.e. testing visual acuity with established vision charts (EDTRS, Landolt ring, etc.) under various lighting conditions including glare. The goal of this work is to increase the flexibility in glare testing through the development of improved instrumentation with static dynamic and custom glare source presentation. The proposed effort is aimed at the design, development, and demonstration of a Digital Glare Testing Device. In the Phase I effort, the adaptability and flexibility of the device, including the presentation of dynamic glare sources, numerous contrast levels in test charts, programmable variations in size, intensity and location of the glare source, and a user friendly computer control system were successfully demonstrated. The Phase II effort will transfer the prototype system to a commercially viable Digital Glare Testing Device through advanced system development and clinical patient testing.

描述（由申请人提供）随着屈光手术的普及，对术前和术后患者眩光评估的准确评估工具的需求也在增加。当前的眩光测试仪器在眩光刺激存在的情况下不能准确地再现眼睛中的生理条件。基于对在不改变眼睛光学参数的情况下评估视觉性能的改进仪器的需求，InterScience提出了基于数字阵列技术的眩光残疾评估仪器的先进开发。实际评估方法与既定程序无差异，即使用既定视力表（EDTRS、Landolt环等）测试视力。在包括眩光的各种照明条件下。这项工作的目标是增加眩光测试的灵活性，通过改进仪器的开发与静态动态和定制眩光源介绍。这项计划的目标是设计、开发和演示一种数字眩光 测试设备。在第一阶段的工作中，该设备的适应性和灵活性，包括动态眩光源的呈现，测试图表中的许多对比度水平，眩光源的大小，强度和位置的可编程变化，以及用户友好的计算机控制系统，都得到了成功的展示。第二阶段的工作将通过先进的系统开发和临床患者测试，将原型系统转移到商业上可行的数字眩光测试设备。