Only Dark Chocolate, remember......
Eating a whole bar of dark chocolate appeared to give some people better vision within 2 hours, researchers said.
As shown by Jeff Rabin, OD, MS, PhD, of the University of the Incarnate Word Rosenberg School of Optometry in San Antonio, and colleagues in the study online in JAMA Ophthalmology, when 30 participants without pathologic eye disease each consumed dark and milk chocolate in separate sessions, they tended to have better small-letter contrast sensitivity right after eating the dark chocolate (1.45 log of the inverse of the minimum detectable contrast [logCS] units versus 1.30 logCS units after milk chocolate consumption, P<0.001).
"These results show that high- and low-contrast vision can be improved within 2 hours after consumption of a commercially available dark chocolate bar. Although the specific mechanism for visual improvement awaits further study, an increase in retinal, visual pathway, and/or cerebral blood flow could be contributory, enhancing bioavailability of oxygen and nutrients to metabolically active sites," the authors suggested.