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To start with, I know that most contacts filter out some UV rays. Also, there may very well be tinted contacts out there (a super-quick search didn't find any). What I propose is putting the two together, along with a lot more protection from harmful rays. Snow glare has been bugging me a lot lately.
So, these would be contacts with only the area of the pupil tinted (an exact opposite of the contacts that change eye color). This also leads to another (not different enough for it's own hb topic) idea of putting pictures on the contacts. Walk around with crosshairs telling you what's straight ahead, etc. Perhaps this should be another idea? let me know.
Novelty contacts
http://www.fxeyes.com/Lenses.html
One brand of many [Worldgineer, Oct 04 2004, last modified Oct 05 2004]
Photochromatic lenses
http://www.eye-glas...ns_photochromic.asp
[Worldgineer, Oct 04 2004, last modified Oct 05 2004]
[link]
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Pictures on contacts exist. I do like the sunglasses part of your idea though. The one issue I see is that sunglasses are easy to take off, whereas contacts are not. That leaves you tripping over furniature when you come inside. Perhaps use photochromatic lenses? |
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The one issue I see is that pupils change size and direction. How will these keep up? |
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[World], or just tripping over the spelling of furniature. ; ) |
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I've seen novelty contact lenses in the past which do just this, but unfortunately, a quick search on Google lists about 4 or 5 pages of advertising sites trying to sell me contact lenses or redirect me to other sites trying to sell me contact lenses, so I can't find them at the moment. |
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[yabba] - toric lenses somehow manage to stay in place regardless of eye motion, also, lenses that affect eye color would have to deal with pupil resizing as well, and i don't know any problems with them... |
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Lenses affecting eye color don't have to address pupil resizing. |
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Nor would these. Contacts cover an area larger than the maximum pupil size. |
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What about lenses that would change color with the amount of light - similar to those "transition" glasses. Why not go all out and make them polarized too? Or better yet - mirrored, so that no one can tell "exactly" where you're looking... |
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You're freaking me out, man. |
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Which William Gibson book was it where a character had sunglass lenses implanted over the front of her eyes? |
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[yabba] they do, to a certain extent- say you get green contacts. the green area has to cover the area of the iris, but cannot intrude on the area where your eye is taking in light...i'm not sure how, perhaps the pupil takes in light but only takes image from a small center area? all i know is the iris resizes along with the pupil, and color changing lenses cover the iris, just as these would cover the pupil. [world], i don't know that you would want the tinted area to cover an area much larger than the pupil. the contact would be standard sized, but the actual tinted area would probably be pretty small to avoid changing the appearance of the iris...unless one wanted to |
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I just assumed you didn't care about changing the color of the iris - certainly sunglasses change the color of a lot more than that. |
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I thought of this idea a number of years back but never got round to patenting anything (:-) |
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The extension of this would be polaroid uv protection lens.! |
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