Test your sunglasses for UV protection, The Truth, using a blacklight is one way to see if UVA rays

I heard of a way to maybe allow me to test if all these UV PROTECTION claims you see on most sunglasses were true. This video shows that method. GOOD SUNGLASSES DO NOT HAVE TO COST A LOT OF MONEY. I just bought some great UV blocking sunglasses for $6.00 online and I like them. I made this video last week and I have been hesitant to post it because I am no eye doctor or expert... but I really liked learning about a way I myself can check the sunglasses I wear and it was so cool and such a good idea that