SBIR Phase I: A Portable Device for Dynamic Visual Acuity

这个小企业创新研究第一阶段项目来自星星山公司。（最近收购了埃塞克斯公司的系统有效性部门）着手开发便携式动态视力（DVA）测试系统。 DVA被描述为反映整个眼科系统效率的全球性指标。 当与静态敏锐度的测量相比时，用于移动目标的动态分辨率的测量已经显示出与刺激和器官变量以及其中涉及动态观看的许多应用任务（例如，驾驶、飞行、运动等）。不幸的是，人们不能购买DVA仪器'现成的。这项工作将审查低成本便携式DVA设备的开发和初步规范性测试的可行性，该设备将现有的计算机和激光技术结合起来，用于移动目标的控制演示。 强调了在应用和研究环境中实际使用所需的灵活性和可靠性。 DVA的变化已被证明在不同的领域，如老年人的驾驶评估，在动态设置中的酒精损害的后果，以及与许多神经系统疾病相关的病理性眼动条件的影响。 在第一阶段，星星山项目团队还将把便携式设备的性能与传统的实验室设备联系起来，这些设备目前对真实的世界设置的预测有效性是可用的。 研究的下一阶段将继续开发设备，建立规范，并以经验证明设备的有效性。 人为因素科学和技术团体对DVA测试系统的兴趣和需求非常强烈。 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，并将包括将DVA纳入驾驶执照更新测试，各种职业（飞行员等）的选择，和老年人功能丧失的鉴定。

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.