Health Journal - WSJ.com.
Even if you can read this, chances are you know somebody who can't. More than 16 million Americans report some form of visual impairment even when wearing glasses or contacts. That number is expected to double by 2030 as the aging population brings rising rates of macular degeneration, glaucoma, diabetic retinopathy and other eye diseases.
But "low vision" (technically, worse than 20/60 in the better eye) doesn't have to mean darkness and dependence. An ever-growing array of devices can help people maximize their remaining vision and in many cases, compensate for what they've lost. Some of the new offerings: free software that can tailor the text on any Web site to your personal visual needs, and a cellphone that can snap photos of text -- like signs and restaurant menus -- and read it back to you.