Tip: Web has sites for sore eyes

One good thing about getting older: Your insight gets stronger. One bad thing: Your eyesight gets weaker. Many vision changes are normal, such as a loss of the ability to focus on close objects. But other changes may signify medical problems that can be treated - or adapted to.

Several websites can give you the information to know what changes are normal and which you should be concerned about. VisionZone (visionzone.org) offers advice, news stories, user forums and information about new products. Its companion site, ShopLowVision.com, sells vision aids for people with advanced eye problems.

All About Vision operates an advertiser-supported website with tips and buying guides. Check out its "How Your Vision Changes as You Age" section (allaboutvision.com/over60) for a list of what to expect and what to watch out for in each decade after you reach your 40s.