Hello! I'm not sure if this qualifies as torture, but I was wondering what the effects of having one's eyes pierced with a sewing needle would be—would this result in permanent blindness, or is it possible that the victim would still be able to retain some eyesight? Thank you! (Sorry if this is a weird question)
Huh. Well I know that in historical India something similar to this was used to blind people. However a heated needle was used and I don’t know how much the resulting blindness was due to the needle itself and how much it was due to the heat.
Heat would cause more damage to the surrounding tissue, basically cooking most of the area around it. It would also sterilise the needle and make infection a little less likely.
But straight up puncturing the eyeball is… OK so I am going to guess that most of my audience has not dissected an eyeball or seen one eaten. (Yes people eat sheep’s eyes in Saudi, you can get them in cans. No I have not actually eaten them myself, they’re a delicacy.)
When you cut a raw eye (depending on how you do it, and if you get behind the lens which is doable) it deflates. The fluid that keeps the structure of the eye flows out, the whole thing collapses. This would not just lead to blindness but problems with the eye socket itself collapsing over time (this is why inserted glass eyes were a thing.) There’s also significant infection risk because you basically have dead tissue stuck inside the eye socket.
I think (not a medic remember) that what the Indian method did was basically cook the cornea and this caused blindness.
A needle could be used to cause enough damage to the cornea to blind someone. Theoretically.
The brain is very good at filling in gaps when there’s small flaws in our vision. We see this with retinal damage and with several different eye diseases. With several different types of eye damage/disease there’s a period where the person won’t notice much change in their vision… and then it suddenly plummets.
That was actually my own experience, my vision seemed ‘normal’ to me for at least a couple of days after the damage was done. Then one day I couldn’t see the blackboard at school.
So where am I going with this? A single small puncture in the cornea specifically probably would not result in vision problems bad enough to be blind. Though they might still result in worse vision.
Multiple punctures on the other hand would probably blind someone.
Here’s the thing: blind usually doesn’t mean no vision. It rarely means complete blackness.
In most places blindness is defined at a specific level of poor eyesight that can not be corrected. My vision can be corrected with glasses, but without glasses my vision is bad enough to classify as blind. Without glasses I can focus to about 2-3 inches in front of my face. I see colour and light. But I can’t see detail. I couldn’t read. I couldn’t drive. I couldn’t navigate by myself. I couldn’t recognise people I knew in the street. However I wouldn’t walk into walls.
The damage in you scenario would be permanent. You’re talking about, at worst, destroying the eyeball and, at best, scarring the cornea. But blindness isn’t an all or nothing thing. There’s a spectrum to it. Vision can be poor enough to be disabling without someone losing their vision entirely.
On a personal note while I’m glad my vision can be corrected (it makes life a lot easier) the world I see without my glasses is still beautiful. The play of light and shadow changes. Colour pops out in a way it doesn’t when I can focus. I can’t see the icelandic poppies in the garden as flowers, but I see these floating motes of vivid orange in a sea of green. I can’t see the rose bush against the wall, but I see these little balls of bright, bright green floating against the brick.
So I’d suggest thinking about what changes to vision will mean for the character and story. Think about the variety within blindness. And choose where to go from there.
I hope that helps. :)
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