« Reply #30 on: December 01, 2010, 04:06:09 PM »
Some idiot designed my eyes with the retinas back to front, so I have to peer past the blood vessels and optic nerve to see anything.
That means you're blind?
He's not blind. I think he means that his eyes don't work all that well though.
My right eye is perfect, but my left eye is hopeless. I can barely read the screen if I close my right eye.
All vertebrates have their retinas back to front; it's what gives us a blind spot and it's why we can see our blood vessels when an optician shines a light in our eyes. Cephalopods have retinas that are the opposite way around, with the photosensitive cells in front and the blood vessels and neurons behind, which means that they don't have a blind spot and can form sharper, brighter images than an equivalent vertebrate retina.
Fascinating! And yet another reason to fear Squid_thing!
Logged
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