Are your eyes as intelligent as you think they are? To find out, watch the line while it passes by the screen. At a certain point, the screen will turn black. After the screen turns white, touch the point that the line was at when the screen turned black. This is easy, right? :)
This game is compatible with both tablets and phones.
Helpful Keywords: eye exam, brain games, quiz, optical illusion
9Apps 4.9
