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Can glass eye sporters move their glass eye similar to their good eye?
Or are modern glass eyes still immobile?
Or are modern glass eyes still immobile?
Current state of glass eyes
the only thing that would really make it obvious it was a glass eye is that the size of the pupil would remain fixed...that might be a little weird if you met someone in a low-lit location like a bar with one pupil fully dilated and the other still small.f
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Yes, they can, provided they still have functioning eye muscles.
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Cool. Examples? I haven't found any yet.
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Does this mean, she has to sit on the floor?
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Evo
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I worked with a guy that had a glass eye due to cancer. I couldn't tell it wasn't real. But then, I'm not very observant.
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Moonbear
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LOL!
I've seen an episode on some show about how glass eyes are made, and it's AMAZING the amount of detail that goes into making them to really match the person's remaining eye. Before that, I never realized that every one of them is custom-made with the details painted in from a photo of the person's good eye. The only thing that would really make it obvious it was a glass eye is that the size of the pupil would remain fixed...that might be a little weird if you met someone in a low-lit location like a bar with one pupil fully dilated and the other still small.
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I think I've seen such a show too.
But I was specifically interested in whether glass eyes can move realistically in concert with the real eye.
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i assume the fake eye on their page is the right one, since i can only see the pink fold (http://en.wikipedia.org/wiki/File:Gray1205.png" [Broken]) on the left. but it is really well done, and not something you'd notice unless maybe you're looking for it.
http://www.ioi.com/default5.htm
http://www.ioi.com/default5.htm
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So how would this glass eye work?
The lens ... the pupil controlling how much light passes though .. if the pupil does not dilate like a previous poster mentioned, doesn't that mean that the vision is sometimes brighter?...
The lens ... the pupil controlling how much light passes though .. if the pupil does not dilate like a previous poster mentioned, doesn't that mean that the vision is sometimes brighter?...
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Glass eyes are non-functional; they are purely aesthetic. The wearer cannot see with them, so any issue of how much light they let in is a non-starter.
So far, state of the art in glass eyes include the following:
- exquisite attention to detail in customization of colour, pupil size, etc. to match good eye
- attachment of muscles to the glass eye so that its motion mimics the good eye
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Which makes me wonder. Why is it so hard to make a functional glass eye? Wikipedia has two long articles on eye implants, one about nonfunctional glass eyes, the other about high-tech visual implants, which apparently take forms of externally worn cameras and electrodes. Surely there are many blind people with functioning retinas, they could use much simpler eye prostheses.
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Let that be a lesson to all, never make a bet with your wife that you know you're going to win. Tis better to make bets you know you're going to lose, then be gracious, pay up and enjoy the benefits...
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Borek
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For sure it depends on the amount of damage to other parts of the eye and so on, but my father-in-law had the lens in the eye replaced with an artifical implant. In a way that's what you are talking about.
Edit: http://en.wikipedia.org/wiki/Intraocular_lens