Optical Illusion (Jon Shelton)

"For other screamers named 'Optical Illusion', see the Disambiguation Page."

Optical Illusion is a screamer video uploaded to YouTube on February 2, 2007 by Jon Shelton, also known as Mad Dad.

The video features an introduction that encourages viewers to focus on a dot that is blurring in and out of focus. The majority of the video consists of a stationary image of the dot. However, at the 0:43 mark, Jon suddenly appears on the screen in a dark room, accompanied by a loud thunderclap, resulting in a jump scare that has earned the video notoriety among viewers. The video concludes with the Mad Dad Productions intro.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=izvtXLGCtP0