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Old 06-04-2008, 01:02 PM #17
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Default Re: Sunglasses

Quote:
Originally Posted by GooeyGus
[quote author=chido link=1212270402/12#12 date=1212575210]This matter was already discussed in the past. (like last year)
Sunglasses will make your pupils dilate and of course they block a certain amount of light, but they will not block out a lot of the laser light. If they don't block out a lot of the laser light and they make your pupils dilate then more light is getting into your eye than it would if you didn't have any glasses at all.
That's why that ugly ;D sunglasses video was made, to show that sunglasses will not block a lot of laser light and you're in danger when wearing them.
You will NOT get more light into your pupils with them on than you would without them. It just doesn't make sense. Like I said, does the sun hurt your eyes MORE with sunglasses on? Of course not. Do you pupils still dilate? Yes. Again I want to stress that I 100% agree that sunglasses are horrible for laser protection. BUT you cant say that MORE light gets into your eyes with them on compared to when they're off. [/quote]
Think about where you you would be when using sunglasses for protection from lasers. INDOORS, where the light is low. Donning sunglasses would further dilate your pupils would they not?

The point is moot because most of us realize that using sunglasses for lasers is just silly.


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Old 06-04-2008, 04:10 PM #18
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Default Re: Sunglasses

Quote:
Originally Posted by GooeyGus
You will NOT get more light into your pupils with them on than you would without them. It just doesn't make sense. Like I said, does the sun hurt your eyes MORE with sunglasses on? Of course not. Do you pupils still dilate? Yes. Again I want to stress that I 100% agree that sunglasses are horrible for laser protection. BUT you cant say that MORE light gets into your eyes with them on compared to when they're off.
I think that this belief is based simply in pupil "size." When the pupil dilates the odds that the laser beam will pass through into the interior of the eye are increased. A larger access = a larger chance that the laser beam will reach the retina.

So you don't get "more light" in your eyes when wearing sunglasses. You increase the odds of getting light inside the eye to damage your retina when wearing sunglasses.

Now factor in the added "confidence" that one is protected and the increasing carelessness that accompanies that assumption.

Peace,
dave
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Old 06-04-2008, 09:13 PM #19
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Default Re: Sunglasses

Quote:
Originally Posted by daguin
[quote author=GooeyGus link=1212270402/12#15 date=1212579532]You will NOT get more light into your pupils with them on than you would without them. It just doesn't make sense. Like I said, does the sun hurt your eyes MORE with sunglasses on? Of course not. Do you pupils still dilate? Yes. Again I want to stress that I 100% agree that sunglasses are horrible for laser protection. BUT you cant say that MORE light gets into your eyes with them on compared to when they're off.
I think that this belief is based simply in pupil "size." *When the pupil dilates the odds that the laser beam will pass through into the interior of the eye are increased. *A larger access = a larger chance that the laser beam will reach the retina.

So you don't get "more light" in your eyes when wearing sunglasses. *You increase the odds of getting light inside the eye to damage your retina when wearing sunglasses.

Now factor in the added "confidence" that one is protected and the increasing carelessness that accompanies that assumption.

Peace,
dave[/quote]


I can agree with this, more surface area = better chance of a direct hit 8-)
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