From cbc.ca:

People who go partially blind after a stroke may regain some vision after doing a set of visual exercises on a computer for several months, researchers say.

"We were very surprised when we saw the results from our first patients," said Prof. Krystel Huxlin, the neuroscientist who led the study of seven patients at the University of Rochester Eye Institute, in a news release issued by the university’s medical centre.

"This is a type of brain damage that clinicians and scientists have long believed you simply can’t recover from. It’s devastating, and patients are usually sent home to somehow deal with it the best they can."

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