Why We're Losing Sight
WebMD News Archive
Researcher George W. Fulk, PhD, OD, a professor of optometry at Northeastern State University in Tallequah, Okla., tells WebMD that when they measured the eyes of these students, they found that the change in nearsightedness was much greater after three months of school than after three months of vacation, and that the changes could be explained by the need for the eyes to adapt to close work during the academic year.
The bottom line is that when your mom yelled, "Get your nose out of that comic book or you'll ruin your eyes!" -- she may just have been right.