Hacker News new | ask | show | jobs
by _hilro 1711 days ago
Is this what you're referring to?:

> In vertebrate embryonic development, the retina and the optic nerve originate as outgrowths of the developing brain, specifically the embryonic diencephalon; thus, the retina is considered part of the central nervous system (CNS) and is actually brain tissue.[2][3]

From https://www.britannica.com/science/retina

> Retina, layer of nervous tissue that covers the inside of the back two-thirds of the eyeball,

Anyway. I'm still not convinced eyes = retina = brain so ill leave it there.