Calibrated Oculomotor Laser Tracker

校准动眼激光跟踪仪

• 批准号: 6550812
• 负责人: LINDA L DAVIS-O'LEARY
• 金额: $ 10万
• 依托单位: WESTERN SYSTEMS RESEARCH, INC.
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-30 至 2003-03-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6550812
• 关键词: biomedical equipment development; clinical research; eye disorder diagnosis; eye movements; human subject; lasers; oculomotor nerve; portable biomedical equipment; sign /symptom; visual tracking

DESCRIPTION (provided by applicant): Oculomotor testing is used worldwide for diagnostic screening of balance and other neurological disorders. Test parameters were not standardized until recently when a new US standard was implemented. ANSI standard S3.45-1999 defines procedures for performing and reporting a battery of tests for the evaluation of human oculomotor function. We propose to develop a portable, calibrated, low-cost device as a stimulus and recording system for oculomotor testing that meets the new standard. The target stimulus will be a laser diode spot whose projected position is commanded by a microcontroller. Beam scanning and positioning capabilities will provide stimuli for horizontal and vertical saccadic, pursuit and gaze oculomotor tests. Eye movement DC electro-oculographic recording will be provided by a high quality, mixed analog-digital circuit. The system will be interfaced with a notebook PC computer for portability. A graphical user interface on the PC will be provided for testing, analysis and data storage. Ten normal subjects will be tested with the device while performing oculomotor tests for saccadic, gaze holding and sinusoidal tracking with parameters required by the new standard. Each subject will be tested on the same day with both the proposed system and an industry-standard light bar system for data comparison. There is a need for a low cost, accurate, automatically calibrated stimulation and recording system that satisfies the new ANSI standard. This device should be transportable for use in bedside testing. This product will provide accurate information for clinicians in all areas interested in identifying patients with sensory and brain disorders.

描述（由申请人提供）：眼科检查在全球范围内用于平衡和其他神经系统疾病的诊断筛查。测试参数直到最近才标准化，当时实施了新的美国标准。ANSI标准S3.45-1999定义了用于执行和报告用于评估人类眼功能的一系列测试的程序。我们建议开发一种便携式，校准，低成本的设备作为刺激和记录系统的眼科测试，符合新的标准。目标刺激将是激光二极管光斑，其投影位置由微控制器控制。光束扫描和定位功能将为水平和垂直扫视、追踪和凝视视力测试提供刺激。眼动直流眼电图记录将由高质量的混合模拟-数字电路提供。该系统将与笔记本电脑连接，以便于携带。将在PC上提供图形用户界面，用于测试、分析和数据存储。10名正常受试者将使用该设备进行测试，同时使用新标准要求的参数进行扫视、凝视保持和正弦跟踪的眼动测试。每名受试者将在同一天接受拟议系统和行业标准光条系统的测试，以进行数据比较。需要一种满足新ANSI标准的低成本、精确、自动校准的刺激和记录系统。该器械应便于携带，以便用于床旁检测。该产品将为感兴趣的所有领域的临床医生提供准确的信息，以识别患有感觉和大脑疾病的患者。