Age-related changes in vision and cognitive performance: Are there cognitive benefits from cataract surgery?

与年龄相关的视力和认知能力变化：白内障手术对认知有好处吗？

• 批准号: nhmrc : 113876
• 负责人: Prof Stephen Lord
• 金额: $ 6.74万
• 依托单位国家: 澳大利亚
• 项目类别: NHMRC Project Grants
• 财政年份: 2000
• 资助国家: 澳大利亚
• 起止时间: 2000-01-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/age-related-changes-cataract-surgery/97341
• 关键词: Age; related; changes; vision; cognitive

It is possible that some of the confusion and memory loss experienced by older people is due to perceptual errors resulting from poor vision. If this is the case, then treating visual impairment may improve everyday cognitive functioning in some older people. This study aims to find out if the improvement in vision experienced after cataract surgery leads to improvement in memory and cognitive processing among older persons. The study will follow a group of adults aged 70 and older who are about to undergo cataract surgery and test them on measures of cognitive performance before surgery, and 3 and 12 months after surgery. Another group of older adults with cataracts who have not yet had surgery and a non-cataract group will also be studied over the 12 month period. The hypothesis of the study is that the group who have had cataract surgery will show greater improvement on the measures of memory and cognitive processing over the follow-up period than the other two groups. The design of the study will allow us to determine whether improvement is due to either; a) simply being able to see the tests better, b) improvement in mood and social participation as a result of cataract surgery; c) changes in the brain that occur from increased sensory stimulation; or d) a combination of these factors.

老年人经历的一些混乱和记忆丧失可能是由于视力不佳导致的知觉错误造成的。如果是这种情况，那么治疗视力障碍可能会改善一些老年人的日常认知功能。本研究旨在查明白内障手术后视力的改善是否会导致老年人记忆和认知过程的改善。该研究将跟踪一组即将接受白内障手术的 70 岁及以上成年人，并测试他们在手术前、手术后 3 个月和 12 个月的认知表现。另一组尚未接受手术的患有白内障的老年人和一组非白内障组也将在 12 个月的时间内进行研究。该研究的假设是，接受白内障手术的一组在随访期间的记忆和认知处理测量方面将比其他两组表现出更大的改善。研究的设计将使我们能够确定改善是否归因于其中之一； a) 只是能够更好地看到测试结果，b) 白内障手术带来的情绪和社会参与的改善； c) 感官刺激增加导致大脑发生变化；或 d) 这些因素的组合。