Mind Blown

Optic disc / blind spot

the patch of retina with no photoreceptors, where the optic nerve exits the eye.

Source board

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You Have a Hole in Your VisionMind Blown

More terms from this board

Photoreceptorsthe rod & cone cells that actually catch light. Filling-in = the brain guessing the missing area.
Saccadestiny constant eye-jumps; combined with filling-in, they hide the hole and stitch a seamless world.