Here's a surprising reason not to settle for subpar vision: Eye exams are good for your brain.

Yep, getting your eyes examined regularly and correcting vision problems could help to significantly reduce your odds of memory-stealing dementia down the road.

An Eye for Trouble?
Compared with people who felt their vision was poor, people who rated their own vision as being very good or better were 63 percent less likely to develop dementia over a 9-year study period. And although the participants showed no signs of dementia or cognitive decline at the start of the study, the researchers found those with worse vision who hadn't bothered going to an eye doctor were 9.5 times more likely to develop Alzheimer's disease. On the other hand, the risk of cognitive decline was not significantly higher in people whose vision was initially not so great but who had problems professionally corrected.

Source:http://www.realage.com/tips/less-memory-problems-better-vision?kw=ist