Researchers at the University of California, Riverside and Boston University “found that with just two days of training, in one-hour sessions with difficult stimuli, resulted in older subjects seeing as well as younger college-age subjects.” G. John Andersen, professor of psychology at UCR noted that “the improvement was maintained for up to three months.” Please click below for a report from the UCR Newsroom.
NOTE: Perceptual learning has been described as performance changes brought about through practice or experience, that improve an organism’s ability to respond to its environment.

Perceptual Training Improves Vision of the Elderly
www.ucr.edu