I bought blue light glasses online.
I bought it on the Internet, so I don't know how it is.
I'm not sure if it's coated or not.
The price is a bit low, so I don't know if it's coated well...
Is there a way to check if the coating is done well?
9847 2018-11-29 Gentleman
If it's a blue reflection in the fluorescent light, you can think of it as a good one
If it's green, it blocks both UV and blue light
If it's blue, it blocks the blue light
Oh! Thank you for the explanation. I thought it was fake because it was cheap, but I bought it wellHaha
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