California man Mike May made international headlines in 2000 when his sight was restored by a pioneering stem cell procedure after 40 years of blindness. But a study published three years after the operation found that the then-49-year-old could see colors, motion and some simple two-dimensional shapes, but was incapable of more complex visual processing. Hoping May might eventually regain those visual skills, University of Washington researchers and colleagues retested him a decade later. But in a paper now available…
April 15, 2015