Is there a way to make my sunglasses scratch-resistant

How to Remove Scratches From Glasses

How would you suggest I prevent scratches on my spectacles? - Quora

Photochromatic Sunglasses - Mirroring and Scratch-resistant

What is the best way to protect sunglasses from scratches without

Photochromatic Sunglasses - Mirroring and Scratch-resistant

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Imported Durable lens helps provide limited protection from light to moderate impact hazards Accommodates most personal eyewear Lightweight, durable

3M Safety Eyeglass Protectors with Scratch Resistant Lens, Tinted Gray Safety Glasses, Gray Lens, 1-Pair

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How To Prevent Your Lenses From Scratching