According to Prevent Blindness America, 53.2 million Americans aged 45 or older have some form of visual impairment, from mild to severe, and about 18% of those affected are “legally blind.” Despite their visual impairments, many of those people use the Internet every day, just like you and me. Further, as more and more people over the age of 50 become comfortable with technology, Internet usage among this demographic will only increase in coming years.
The web is full of tips on how to design websites for blind users, most of which are geared toward making your website accessible to screen readers. But as you can tell by looking at the numbers above, there is a large middle ground. The vast majority of individuals with visual impairments, even those considered legally blind, don’t need or use screen-reading software. However, the web can still be a difficult and cumbersome place to navigate when one can’t quite see it clearly.
Source : Mashable