A stereogram is a two-dimensional picture that has a 3D image hidden inside it.
The hidden image is not on the surface of the monitor screen.
To find the hidden image you must focus you eyes through the screen.
Pretend that you are looking through the monitor to the distant background.
This causes you to switch from "near point" to "far point" vision and will
allow the hidden image to come into view.
Put your face close to the screen. Pretend to look through the monitor.
Now, very slowly move back from the screen and as you do so the image will come into view.
This may take several attempts, but it does work.
The 3D image of this can be seen in the above stereogram.
Angel Room - Andy Lakey Angel Stereogram:
