Please try to read the below, if you could then try the below links for more. If not then close your eyes (80 to 90%) and try to ready the white background or see from long distance.

http://picasaweb.google.co.uk/bkvijayaraghavan/OpticalIllusion?authkey=Q3R5PKEqScY

Note: thanks to vijayforvictory.com –  really nice and appreciated work