Eye Test

Give your smartphone to your friend to examine eyes - suddenly pop out during the test terrible image, shocked sound and vibration.

Impress your friends.

Tips:

- Set the volume in your smartphone to the max

- The effect will be better if the test will take place in a quiet, preferably as a dark place

- It is recommended that the maximum brightness of the screen

- Watch your smartphone - friend can drop it in a panic

- Note on the elderly, sickly or the faint of heart