“EVERYTHING seems to stiffen up as people age, and our eyes are no exception. As the years go by, the lens of the eye becomes harder and less elastic. The result is a gradual worsening of the ability to focus on objects up close, called presbyopia.”
In this New York Times article, Michelle Andrews gives lots of good advice and weighs the options seniors have as their eyesight weakens.
Watch for future articles about what to do around the house for people with failing vision. You may have already noticed this Guide for iPhone Users who are Blind.