If they do not have a signal coming from the optic nerve then they likely don't see black.

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O` tru apothecary!
Thy drugs are quick.
Thus with a kiss I die.

If it's eye damage: human vision has a short range on the light spectrum, and when no perceivable light is sensed by your eyes you see black. Since completely eye-blind people's eyes don't sense any light, their occipital lobe perceives a lack of light. Complete darkness (blackness) is perceived in the brain.

If it's brain damage: "seeing" really happens in your brain, not your eyes. If you damage your occipital lobe (the part that perceives vision, located in the back of your brain) and become blind from it, you won't just lose your vision but ALL memories of vision. That's why sometimes when it gets damaged, people won't even know it's damaged. They don't know vision anymore... these people don't see black, they just don't see. Nothing is perceived because they don't have the ability to perceive light/lacktherof.

Post edited at 7:24 am on Oct. 19, 2008 by cum

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It depends on whether or not their optic nerve is in tact, in other words, the type of blindness that they suffer.

If they do not have a signal coming from the optic nerve then they likely don't see black.

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