Video games good for vision

US scientists have found that playing action video games regularly can improve vision.

A study by researchers at the University of Rochester showed that people who played action games for a few hours a day over the course of a month showed an improvement by around 20 per cent in their ability to identify the letters on the bottom line of a standard eye chart.

Researchers Shawn Green and Daphne Bavelier tested college students who had played few, if any games. The students were divided into those who were given a shoot-em-up action game to play and those who played Tetris which is visually less complex.