this post was submitted on 11 Aug 2024
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[–] [email protected] 6 points 1 month ago (1 children)

Pulling this straight out of my ass but I think it’s likely to be polycarbonate

[–] [email protected] 7 points 1 month ago

I worked in optical it's polycarbonate. Can be a plastic called cr39 or it could be a high index lens if they have a very high prescription generally alcohol won't hurt it. If the frame is plastic the alcohol could potentially fog the plastic.