Realize that's not dirt on your glasses, but something a bit more permanent? Here's how to remove scratches from glasses when the inevitable happens.
3 Ways to Fix Scratched Glasses - wikiHow
How to Remove Scratches from Glasses: A Step-by-Step Guide – Eyewa Blog
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How to Remove Scratches from Glasses
How to Remove Scratches from Glasses: A Step-by-Step Guide – Eyewa Blog
3 Ways to Fix Scratched Glasses - wikiHow