SBIR Phase I: A Portable Device for Dynamic Visual Acuity

Star Mountain公司（最近收购了Essex公司的系统效率部门）的小企业创新研究第一阶段项目旨在开发便携式动态视力（DVA）测试系统。DVA被认为是一种反映整个动眼肌系统效率的全球性指标。与静态敏锐度测量相比，运动目标的动态分辨率测量显示出与刺激和有机体变量以及涉及动态视觉的许多应用任务（例如，驾驶，飞行，运动等）之间的密切关系。不幸的是，人们不能购买现成的DVA仪器。“这项工作将检查低成本便携式DVA设备的开发可行性和初步规范测试，该设备结合了可用的计算机和激光技术，用于控制移动目标的呈现。强调了其在应用和研究环境中实际使用所必需的灵活性和可靠性。DVA的变化已经在许多不同的领域得到证实，如老年人的驾驶评估、动态环境中酒精损害的后果，以及与许多神经系统疾病相关的病理性眼动状况的影响。在第一阶段，Star Mountain项目团队还将把便携式设备的性能与传统实验室设备的性能联系起来，这些设备目前对现实世界设置的预测有效性是可用的。下一阶段的研究将继续开发该设备，建立规范，并实证证明该设备的有效性。人为因素科技界对DVA测试系统的兴趣和需求日益浓厚。因此，一旦原型可用（第一阶段结束），将向军事、大学和工业视觉实验室销售用于基础研究和高级开发研究。更大的市场将需要更长的时间来开发，并将DVA纳入驾驶执照更新测试、各种职业的选择（试点等）以及老年人功能丧失的识别。

This Small Business Innovation Research Phase I project from Star Mountain, Inc.(which recently bought the Systems Effectiveness Division of Essex Corporation) sets out to develop a portable dynamic visual acuity (DVA) test system. DVA has been described as a global measure that reflects the efficiency of the entire oculomotor system. When compared to measures of static acuity, measures of dynamic resolution for moving targets have shown strong relationships with stimulus and organismic variables and many applied tasks in which dynamic viewing is involved (e.g., driving, flying, sports, etc.). Unfortunately, one cannot purchase a DVA instrument 'off the shelf.` This effort will examine the feasibility of development and initial normative testing of a low-cost, portable DVA apparatus that incorporates available computer and laser technology for the controlled presentation of moving targets. The requisite flexibility and reliability that are needed for its practical use in both applied and research settings are emphasized. DVA changes have been demonstrated in such diverse areas as driving assessment among the elderly, the consequences of alcohol impairment in dynamic settings, and the implications of pathological eye-movement conditions associated with many neurological disorders. In Phase I, the Star Mountain project team will also link performance on the portable device with the traditional laboratory devices for which current predictive validities toward real world settings are available. The next phase of the research will continue development of the device, establish norms, and empirically demonstrate validity of the device. The human factors science and technology communities the interest in and need for a DVA test system keen. Thus sales to military, university and industrial vision laboratories for use in basic research and advanced development studies will be made as soon as a prototype is available (end of Phase I) The larger market would take a little longer to develop and would include incorporation of DVA into driver's license renewal testing, selection for various occupations (pilot, etc.), and identification of functional loss in the elderly.