Twice after being skiing with my goggles I had burning eyes. I've researched about goggles but I'm not sure whether they in general have UV protection, and in particular if mine have.
Is there an easy way to verify that?
To generate UV light I have tried the trick where you color tape blue and purple and put it on the mobile phone led. To detect UV I have used a highlight marker on paper.
I have tested filtering the "UV-colored" led light through various goggles and sunglasses however I more or less can only discern that reflection off paper and phosphorescence of the highlighter get a bit darker no matter which goggles/sunglasses I try. It seems that the glasses/goggles diminish the bluish light coming out of the smartphone led overall, but not UV in particular.
So are there better life hacks to measure/see UV filtering in effect and/or to create UV light?