From daily Health:
Tuesday, December 6, 2011. Feeding older mice a lower glycemic index (GI) diet consisting of slowly-digested carbohydrates delays the onset of age-related, sight-threatening retinal lesions, according to a new study from the Laboratory for Nutrition and Vision Research at the Jean Mayer USDA Human Nutrition Research Center on Aging (USDA HNRCA) at Tufts University.
The researchers studied middle-aged and older mice that consumed either a higher or lower GI diet. Mice fed the lower GI diet developed fewer and less-severe age-related lesions in the retina than the mice fed the higher GI diet. The lesions included basal laminar deposits, which typically develop after age 60 in the human retina and are the earliest warning sign of Age-Related Macular Degeneration (AMD).