A nationwide vision study says 94 percent of Americans have good eye sight, or at least good enough to pass a drivers license test. But the study also found there are millions who think what they see is okay, when their eyes aren't nearly as good as they could be.
"We were surprised at just how many Americans, 11 million of us, would have our vision improved if we just had access to, and wore, corrective lenses such as eye glasses or contact lenses," said Mary Frances Cotch, Ph.D.
The study comes from the National Institutes of Health after giving eye exams to about 13 thousand Americans, age 12 and older. The most important message in that journal report is that people need to get routine eye exams, which means every year.