Video games can heal! Canadian doctors say that playing Tetris can treat lazy eye.
The lazy eye condition is usually treated by patching the good eye. This forces the lazy eye to work harder and over time catch up with the good eye. Canadian doctors found out now that playing Tetris can fix the condition too. According to a publication in Current Biology (via BBC) playing Tetris worked better than patching in a small study with 18 adults.
Now the researches are planning to test Tetris on children. Playing Tetris hands down beats running around with a patch. Note that this will not work with playing BioShock Infinite. Tetris is special as the placing and rotation of the shapes requires both eyes to work together.