I wonder if there's anyone out there who can't see their nose at all?
this post was submitted on 27 Dec 2023
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Add to that the blind spot right in the middle of each eye that the brain just kind of doesn't care about. It's pretty amazing, but it's also useful for thinking about consciousness and what it isn't. I.e., the missing info isn't like a hole in the screen of a movie. Unrepresented info just... isn't. That can help us get over the misconception of a "mind's eye" that's somehow watching the movie of your inputs playing out in your brain (which, logically, was always just a "turtles all the way down" trap/fallacy, anyway).
Your blind spots aren't in the middle of each eye. They're offset or else you wouldn't see what you're looking directly at. You wouldn't be able to read. In fact, the center of your eye is the fovea which has the highest density of cones in the eye.
https://en.m.wikipedia.org/wiki/Fovea_centralis
The blind spot is where the optic nerve enters your eye.
There are online tests that show you where your blind spots are. It works even on your phone, but you have to hold your phone just 3-4 inches from your nose, not the 10-12" like on a monitor. It's fun to see the circle completely disappear.
https://lasikofnv.com/blog/try-these-three-fun-tests-to-find-your-visual-blind-spot/
I get visual migraines and the onset of one presents as a blind spot right in the center of my vision, and I can't read. It's interesting to watch it evolve and see what my brain fills it in with. At first it just looks like your regular blind spots. My brain fills it in with surrounding colors, but as it expands and moves off to the side, it becomes a shimmering, crystalline, spiral rip in the universe.