Welcome to BrainBashers Optical Illusions. Optical illusions are often described as visual images that differ from reality - the eyes and brain 'see' something that doesn't quite match the physical measurement of the image.

Optical illusions can work in various ways, they can be images that are different from the objects that make them, they can be ones that come from the effects on the eyes and brain through excessive stimulation, and others where the eye and brain make unconscious inferences.

Top 10   Impossible triangle?   Black and white dots?   Are these cafe wall lines parallel?   Shadow illusion?   Level balance?   Same length red lines?   Can you tell what it is?   Glass illusion?   Rotating circles?   A lovely vase? Virtual Objects   Three lines make a...?   Can you remember Pacman?   A lovely vase?   White arrows?   Missing rectangle?   A-B-C : 12-13-14?   Is the square really there?   Impossible sequence?   What can you see?   Missing cube?   How many shelves?   Impossible E?   Impossible shelf?   Black and white dots?   Impossible prongs?   Impossible frame?   Impossible shelf?   Can you tell what it is?   Duck or rabbit?   Face or Eskimo?   What can you see?   Impossible walls?   Lilac Chaser   Impossible waterfall?   Odd perspectives   Woman or skull   Virtual sphere   Same level balls?   Magpie on gallows   Skull or children   Can you find the nine hidden people?   Colomba   Horizontal lines?   Tray illusion   Teach / Learn Shape Distortion   Is this a square?   Or is this a square?   Are these lines parallel?   Are these cafe wall lines parallel?   Are these true squares?   Are these line straight?   Or these?   Another set of squares?   More straight lines?   Straight diagonal lines?   Distorted square?   Another distorted square   Is this a real circle?   Which dot is in the centre of the circle?   Triangular centre?   Horizontal circles?   Impossible design?   Interesting escalator   A true square?   Size distortion   Parallel lines?

Random Illusion   Most Recent Illusions   Coloured regions   Healing grid   Teach / Learn   Same colour crosses?   Tray illusion Visual Distortion   How many black circles?   Does the circle appear to move?   A bird in the hand?   Are there any grey dots?   Faulty read-out?   The ring of grey?   Book illusion?   In or out?   Spiral illusion   Light bulb afterglow   Coloured afterglow   Flag afterglow   Grey diagonal?   Glass illusion?   Outer bulge   Inner bulge   Moving image?   Moving square?   More than 2 colours?   Shadow illusion?   Same colour orange?   Identical Squares?   Same colour grey?   More grey?   Jesus afterglow   Square distortion   Rotating eyes   Slow gears   Level balance?   Wobbly skyscapers?   Same coloured cube faces?   Rotating circles?   Same colour squares?   Colour distorted square   Same colour centres?   Continuous coloured center bar?   Same coloured green ends?   Same coloured dogs?   Disappearing fluff   Which line?   Aftereffect illusion   Disappearing circle   Old or young lady?   Garbled text?   Hidden baby   Purple Nurple   Colour deception   Same colour crosses?   Healing grid?   Coloured regions [New] Size Distortion   Same size circles?   Are these lines the same length?   Are these lines the same length?   Which is the biggest circle?   Are these sections the same size?   Same size white bars?   Which line is longer?   Which is wider?   A-B or B-C, which is longer?   Same area?   Same length?   Lamp and base   Angled circles   Same size squares?   Y the same?   Same length red lines?   Same length?   Leaning Tower of Pisa   Same length lines?

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