Questions tagged [light-sensitivity]

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When watching TV in the dark is it good to have another light source for the eyes?

Once I heard a friend mention that having another light source while watching TV is important for eye health. Is this true?
2
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59 views

World's decision to switch to LED lighting (to save $) cause more health problems? Migraines? Circadian-Rhythm? Seizures? Light-sensitivity?

I have not switched to LED lighting in my home (though I know that it saves a lot of money in the long run) because I know how it personally impacts me. Not only does it disrupt my circadian-rhythm (...
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58 views

Is Near-infrared focused light safe for your eyes?

I found a new product, but I'm afraid it's not safe. Can you help me understand what the safety limits are when it comes to near-infrared light focused on your eyes is? I'm assuming the wavelength ...
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Do hazel-colored eyes change colors (depending on surroundings) or is that an optical-illusion? Why is the hazel pigment so sensitive to light?

Do hazel-colored eyes change colors (depending on surroundings) or is that an optical-illusion? Why is the hazel (and blue) pigment so sensitive to light?
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15 views

How good are snow goggles for UV protection?

Snow goggles are sometimes used to protect against photokeratitis (a.k.a. snow blindness). How good are snow goggles for UV protection? E.g., do they block 99 to 100 percent of both UVA and UVB rays, ...