APPLIED VISUAL PERFORMANCE TESTS

美国人口正在急剧老龄化。视觉上的变化几乎是 随着年龄的增长，这是不可避免的。失明是……的主要障碍 独立生活降低了老年人的生活质量。这个 这个项目的初始阶段扩展了我们对视觉的了解 老年人的功能及其与视力任务的关系 表现，主观视觉抱怨和一般健康和 功能正常。关于一系列视觉功能的数据已经 收集了902名随机挑选的社区生活参与者 55岁，包括一个异常庞大的数字，近300岁，80岁以上 几年，这是一个视觉功能基本上未知的亚组。 老龄化研究的许多重要目标现在可以通过 建议的纵向研究，为其建立的研究队列， 经过验证的视力测试和同时进行的健康和健康流行病学研究 发挥作用提供了一个独特的机会。这批人将接受测试 在研究期间，使用视力测试电池的人又增加了两次， 问卷(包括NEI生活质量量表)，以及 视觉任务绩效测量。驾驶和医疗记录也会 被收集起来。独立资助的纵向研究计划 将继续评估一般健康、营养和身体状况 功能正常。 这些信息与视觉相关的结果将结合在一起 提供范围唯一的数据集。具体目标包括 视觉功能和视觉任务变化的表征 随年龄增长的表现.健康、营养和其他风险的测定 视觉功能丧失的因素.视力能力的评估 前瞻性预测健康状况的远景措施；和发展 组合风险因素模型来解释协同作用 视力和其他健康/功能缺陷之间的影响 日常任务表现和生活质量。 Smith-Kettlewell眼科研究之间现有的合作 研究所和巴克中心的流行病学研究计划 老龄化研究是解决广泛问题的独特机会 范围和重要性，否则将需要巨大的资金和 人力资源。与此同时，有关视力的有价值的数据随着 年龄将适用于快速增长的人口 其视觉功能从未如此全面的重要性 学习。

The US population is aging dramatically. Vision changes are virtually inevitable with increasing age. Loss of vision is a major obstacle to independent living which reduces the quality of life in old age. The initial phase of this project has extended our knowledge about vision function among the elderly and its relationship to vision task performance, subjective visual complaints and general health and functioning. Data on a wide array of vision functions have been gathered on 902 randomly selected, community-living participants over the age of 55 including an unusually large number, nearly 300, over 80 years, a subgroup whose vision function was essentially unknown. Many important goals of aging studies can now be addressed by the proposed longitudinal study for which the established study cohort, validated vision tests and concurrent epidemiologic study of health and functioning present a unique opportunity. The cohort will be tested twice more during the study period using the vision test battery, questionnaires (including the NEI Quality of Life instrument), and visual task performance measures. Driving and medical records will also be collected. An independently funded, longitudinal research program will be continued to evaluate general health, nutrition and physical functioning. This information in combination with the vision-related results will provide a data set unique in scope. Specific goals include characterization of the changes in vision function and visual task performance with age; determination of health, nutrition and other risk factors for loss of vision function; assessment of the ability of the vision measures to prospectively predict health status; and development of combined risk factor models to explain the synergistic interactions between vision and other health/functioning deficits in affecting everyday task performance and quality of life. The existing collaboration between Smith-Kettlewell Eye Research Institute and the epidemiological research program at the Buck Center for Research in Aging is a unique opportunity to address issues of broad scope and importance that would otherwise require enormous financial and human resources. At the same time, valuable data on vision changes with age will be made available on a population of rapidly increasing importance whose vision function has never before been comprehensively studied.