APPLIED VISUAL PERFORMANCE TESTS

美国人口正在急剧老龄化。 视觉变化实际上是 随着年龄的增长而不可避免。 视力丧失是一个主要障碍， 独立生活，降低老年生活质量。 的 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觉作业的关系 性能、主观视觉主诉和一般健康状况， 功能 有关广泛视觉功能的数据已经 收集了902名随机选择的社区生活参与者， 55岁的人包括一个非常大的数字，近300人，80多人， 年，亚组的视觉功能基本上是未知的。 衰老研究的许多重要目标现在可以通过 拟议的纵向研究，其中已建立的研究队列， 经验证的视力测试和同期流行病学研究的健康和 这是一个独特的机会。 将对该队列进行测试 在研究期间使用视力测试组合再进行两次， 问卷调查（包括NEI生活质量量表），以及 视觉任务表现测量。 驾驶和医疗记录也将 收集。一个独立资助的纵向研究项目 将继续评估一般健康、营养和身体状况， 功能 这些信息与视觉相关的结果相结合， 提供范围内唯一的数据集。 具体目标包括 表征视觉功能和视觉任务的变化 健康、营养和其他风险的测定 视觉功能丧失的因素; 视力测量，以前瞻性地预测健康状况; 联合风险因素模型来解释协同作用 视力和其他健康/功能缺陷之间的关系， 日常工作表现和生活质量。 史密斯-凯特尔韦尔眼科研究公司与 研究所和巴克中心的流行病学研究项目 老龄化研究是一个独特的机会，以解决广泛的问题， 范围和重要性，否则将需要巨大的财政和 人力资源. 与此同时，关于视力的有价值的数据随着 年龄将在人口迅速增加的情况下提供 重要性，其视觉功能以前从未全面 研究了

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.