If they are plastic (lexan or one of the other plastics) it is best to just clean them with water and polish dry with a very soft cloth. Do not use paper! Paper will eventually scratch the plastic.
If they have a special no-glare coating it is best to consult with the optometrist who made them and follow her instructions exactly.
It is not a good idea to cheap out on cleaning something that may have cost you over $300!
Source: Have worn prescription glasses for 60 years.
By DeBushe from Gilroy, CA
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I do not suggest drying your eyeglasses with paper towel. I have scratched my lens in the past using that method. Just use a soft dishtowel.
I've been an optician for 30 years and the only time I use alcohol on eyeglass lenses is to get hairspray off. Alcohol used on a regular basis can break down some coatings. Particularly those with a non glare coating. Either use the recommended cleaner from your optician or use mild soapy water and a cleaning cloth (those found for glasses or cleaning electronic devices like Iphones and computer screens). Vinegar and water seem to be fine also- just dilute the vinegar.
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