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Posted: 1/31/2013 8:45:40 AM EDT
| After you using a unit for a while at night I'll get some small problems with my eyes that last for a few hours, like flickering or excess of light. Do you know if this will have any consequences in the long run. Do you have any studies about this? |
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Quoted:
After you using a unit for a while at night I'll get some small problems with my eyes that last for a few hours, like flickering or excess of light. Do you know if this will have any consequences in the long run. Do you have any studies about this? Both eyes? You wearing duals? Also, using a Wilcox filter will cut down a bit of the brightness (too much maybe) your experiencing. Also, if using a unit with adjustable gain, good to turn it down if the brightness is causing the issue. Vic |
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Quoted:
Quoted:
After you using a unit for a while at night I'll get some small problems with my eyes that last for a few hours, like flickering or excess of light. Do you know if this will have any consequences in the long run. Do you have any studies about this? Both eyes? You wearing duals? Also, using a Wilcox filter will cut down a bit of the brightness (too much maybe) your experiencing. Also, if using a unit with adjustable gain, good to turn it down if the brightness is causing the issue. Vic This. If you have adjustable gain, use it. Way more comfortable on the eyes to keep things JUST bright enough, instead of cranked all the way up. |
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Quoted:
Quoted:
After you using a unit for a while at night I'll get some small problems with my eyes that last for a few hours, like flickering or excess of light. Do you know if this will have any consequences in the long run. Do you have any studies about this? Both eyes? You wearing duals? Also, using a Wilcox filter will cut down a bit of the brightness (too much maybe) your experiencing. Also, if using a unit with adjustable gain, good to turn it down if the brightness is causing the issue. Vic No just one eye. I wear a mono. Thanks for the input. I didn't think it was anything to worry about, but wanted to check. |
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What you are likely experiencing is that one eye is adjusted to the dark, while the eye under the NV is being adjusted to the amount of light coming through it. It takes between 20-45 mins depending on the person, for your eyes to fully adjust to light in a given setting.
The same thing happens when you look through a magnified optic for a long period of time. The optic is magnifying the available light and can cause fatigue on the eye being used. |
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You also want to make certain you are not dialing too much diopter.
Turn the diopter ring to the left (counterclockwise) until the image goes blurry, then turn it to the right until the image comes into sharp focus. If you don't have an infinity test set or good distant object to focus on then cap the objective and focus on the scintillation. Physiologically your eye can only focus one direction, so by putting positive diopter on first it forces your eye to try to focus at infinity. You want the minimum amount of negative diopter to minimize eye strain. (which can cause flashes later) |
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