> Diets high in refined starches such as breads and cereals increase insulin > levels. This affects the development of the eyeball, making it abnormally > long and causing short-sightedness, suggests a team led by Loren Cordain, an > evolutionary biologist at Colorado State University in Fort Collins, and > Jennie Brand Miller, a nutrition scientist at the University of Sydney. I mentioned this story a while back: a friend had suddenly improved vision, from being far-sighted to almost not needing glasses. His doctor diagnosed onset of type 2 diabetes. The doctor explained that this diagnosis is frequently linked to sudden improvements or changes in eyesight. --Richard