
Bavelier and a graduate student tested a group of students who had played either very few or no games at all over the past year. After receiving an eye test, the subjects were divided into two groups; one which played shoot-em-up action games for an hour a day and one who played less complex and action-packed games.
After the study, the vision of the subjects was tested again showing the results. As a matter of interest, those who played the games with more action scored better on the eye exam.
Source:
Reuters