6 Interesting Facts About the Human Eye

Our eyes perceive things upside down

The things we see is made up of reflected light from the objects we are looking at. However, the cornea at the front of the eye is curved meaning it bends this light as it enters the eye. When the lights reaches the retina at the back of the eye, the image is upside down! Our brain flips the image back round the right way allowing us to see the image perfectly.

An Austrian professor named Theodor Erismann conducted an experiment using some goggles worn by his assistant that made the assistant see things upside down – amazingly within a week his brain adapted to this and flipped the image the right way round again!

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