This is a game for eye test.
Study reveals that people can not recognize visual changes made slowly over 8 seconds due to an optical illusion.
Please click on a part of picture slowly changing.
It will be still for the first 2 seconds, change for the next 8 seconds, and then still again for the last 2 seconds.
If you find out any change, click on it.
If you click on a wrong place or fail to find one within 12 seconds, the game ends.
If you do not succeed at a time, then a hint will be given.
Now, open your eyes and get ready!!
Download from AppStore: here