Tetris may help amblyopia

Researchers from McGill University in Montreal Canada have found that the eyes of adults with amblyopia could be trained by playing puzzle video game Tetris.

The study, published in the Current Biology journal, involved 18 adults, all with amblyopia. Half of the participants played Tetris through goggles with just one eye, with the stronger eye patched and the other half played the game with both eyes unpatched, but wore goggles so that one eye was allowed to see only the falling objects, and the other eye was allowed to see only the ground plane objects.

After two weeks of playing the game, researchers found that participants who used the goggles to play the game had better depth perception and improved vision of the weaker eye, but participants who covered up their stronger eye with the patch only experienced some vision improvement. These participants also tried the goggles and were said to have experienced improved vision and depth perception.