my eye doctor told me a story about an older dude in england. lived alone. his children came round now and then to make sure he was looking after hisself and his cupboards had food in them. for a decade or so this was the routine. one night he had a bad fall and during the course of his recovery and assessment if he could still live alone he went the doctors, they sent him to the eye doctors, the eye doctors concluded he was fully blind and had been for a long time

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There was a bit of investigation into neglect from the children had they just let him bumble around this house fully blind for a few years but ultimately they concluded his brain had built an image of his house, the furniture, everything within the property from when he could still see stuff, so though he could not see, he could still see how it all was in his brain so he never seemed like he was blind to his children

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I'd love to know if there's a link to that. It's a story that always stuck with me and made me wonder.