Eye Test (SCARY PRANK) description

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