A THOUGHT-provoking optical illusion has left many questioning their own brains. Most optical illusions confuse the human brain via the use of color and lines – and one simple image proved this is the ...

THERE is a well-known visual illusion in which a vertical line is judged as longer than a horizontal line of the same length. The illusion also holds, though attenuated, when lines are perceived ...

A myriad of optical illusions keeps us glued to our screens as we keep questioning reality. And this fascination surrounding optical illusions is evident in the viral appeal of social media posts ...

Visual Optical Illusion Test: Try to test your observation skills and eyesight by looking at the horizontal lines in this optical illusion image. Are the horizontal lines parallel or do they slope ...

This optical illusion is so brain-twisting it comes with a health warning. The trick can make you see black and white as green and red for up to three and a half months. To make the trick work you ...