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My understanding is outside, your pupils will dilate as the light increases, protecting your retina from increased UV. If you had a strong emitter of UV in a re
by dashundchen 4y ago
My understanding is outside, your pupils will dilate as the light increases, protecting your retina from increased UV. If you had a strong emitter of UV in a relatively dim room, your pupils wouldn't shrink and would allow more damaging UV to hit your retinas.
- antisthenes 4y agoI'm not sure where you got this understanding from, but the LED lights I'm talking about (grow lights) are definitely bright enough to make your pupils shrink. > If you had a strong emitter of UV in a relatively dim room A 150 watt LED right above your head is the opposite of dim.