A recent population study by the National Institute of Health found that myopia (nearsightedness) has increased from 25% in 1971 to 41% in 1990-2004. There are a number of reasons that this could be occurring. One thought is that increased near work and reduced time outdoors can be a leading factor in the increase of myopia. Kids are spending much less time outside. They are growing up in front of...
1/4/2010 2:24:08 PM