Skip to content


    Attention All WebMD Community Members:

    These message boards are closed to posting. Please head on over to our new WebMD Message Boards to check out and participate in the great conversations taking place:

    Your new WebMD Message Boards are now open!

    Making the move is as easy as 1-2-3.

    1. Head over to this page:

    2. Choose the tag from the drop-down menu that clicks most with you (and add it to any posts you create so others can easily find and sort through posts)

    3. Start posting

    Have questions? Email us anytime at [email protected]

    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.

    Featuring Experts

    Alan Kozarsky, MD, is one of the leading corneal, cataract, and vision correction specialists in the country and was selected again this year by Atla...More

    Helpful Tips

    46 yr old female diagnosed with punder my pink eye
    there is a lump on the inside of my left eyes it almost looks like a big pimple or cyst..i went to a walk in and they told me it was pink ... More
    Was this Helpful?
    0 of 0 found this helpful

    Related Drug Reviews

    • Drug Name User Reviews

    Report Problems With Your Medications to the FDA

    FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.