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Science

Nitram

(22,781 posts)

4. I think the point is that even if glasses block out all visible light, they may pass UV light, which

Reply to Towlie (Reply #3)

Sun Aug 13, 2017, 01:39 PM

Aug 2017

is the most harmful frequency. Basically, the glasses might be ok but if they are not certified, there is no way of knowing, and not worth the risk. I got online to replace the glasses I got from Amazon (a month ago) as soon as I got their email, and almost every certified product already had a backorder time of two or more weeks. The person I got on the chat helpline finally located some children's size glasses which were certified and immediately available.

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Highlight:

I have some questions about "counterfeit" eclipse viewing glasses. [View all] Towlie Aug 2017 OP

Amazon is giving me a refund freddyvh Aug 2017 #1

How can you tell if your solar viewer is not safe? GeorgeGist Aug 2017 #2

That article logically contradicts itself. Towlie Aug 2017 #3

I think the point is that even if glasses block out all visible light, they may pass UV light, which Nitram Aug 2017 #4

I don't believe the intended meaning of that paragraph is a contradiction of the previous statement. Jim__ Aug 2017 #5

Not sure I'd trust glasses, at all Warpy Aug 2017 #6

That's, what we're doing. Canoe52 Aug 2017 #7

Here's an article that talks about solar glasses certification and how to be safe: CaliforniaPeggy Aug 2017 #8