When you close your eyes, and push on the side of either eyelid, you see a dark spot appear in your vision on the opposite side of the area that you’re applying pressure to. Why is that?
In: Biology
Because your eye actually gets its input of light upside down due to the way the lens refracts the light onto your cornea. Your brain flips it right side up in “post” if you will. The spot you see is mirrored because you are getting sensory input from pressing on your eye and cornea and your brain flips that around just like the rest of your sight.
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