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Includes Expert Content
blacklight causes my vision to white out
ChristophorM posted:
My daughter and I were playing with a black light the other day trying to find invisible carpet stains. I noticed that when the black light was on, my vision started to get foggy. It's like when you need to use the defroster in the car.

This only happens when the blacklight is on. I can't see anything but whiteish fog. It's foggier where the light is brighter. It's weird. It never happened before. I don't think the blacklight caused any damage. I think the blacklight just makes the probem obvious.

I have two theories.

Eye damage due to accidental exposure to really bright laser pointers. I didn't notice any damage, but we don't always notice it from what I've heard. One of the laser pointers is a blue-ray laser, it's actually the same kind of light as a black light, but its a laser. The other is a green one that is so strong we put a green dot on some low clouds one night.

The other theory is there is something, on my eye that glows in the black light. It might be germs or gunk or I don't know what one might get on their eyes that would glow in black light but be otherwise invisible.

I'm 40 years old. I had an eye exam a few months ago. No problems were detected. This never happened before. Is it maybe age related?

Do I go to the eye doctor or will my PCP be able to address it?

Any opinions, advise or leads on more intormation wuld be appreciated.
Byroney_WebMD_Staff responded:
Christophor, so glad you popped into our new eye community and posted. Our new Health Expert should be arriving here soon.

It's great that you made such detailed observations. Hopefully they'll help your doctor figure out what's going on. I would suggest the eye doctor over your PCP since the expert would have more experience with unusual eye issues.

Keep us updated!

Alan M Kozarsky, MD responded:

You are very unlikely to cause any damage with a low intensity ultraviolet "black" light. Nonetheless, there is no good reason to subject your eyes or any part of you to unnecessary light exposure.

Ultraviolet light is absorbed by the corneal surface cells and intense exposure eg. welding without eye protection or bright reflected sunlight while skiing, can result in corneal irritation and abrasions.

Your experience doesn't make me think of any particular eye problem. However, no need to repeat this kind of exposure.

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