Have you been working hard for the last 5 hours? Your eyes are tired and your vision is difficult to concentrate, isn't it?
This simple game will not only check your vision and your ability to see the latent images.
It will allow you to do simple exercises for the eyes, and after 5 minutes you are ready to get back to work again!
Your task is to see the numbers or letters inside the block and to type in the field above the button "Next". If you can't see - just press next for the next picture.