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What do the numbers on my glasses mean?
Hi there! I've been wondering what these numbers mean on my prescription glasses - 50+(then a square symbol)18-135mm. Please explain! Thank you!
Do you know your prescription? Do you have an astigmatism?
mine say..
50(square thingy) 15 - 132
i reckon, its just measurements to do with the width of your glasses, etc
50(square thingy) 15 - 132
i reckon, its just measurements to do with the width of your glasses, etc
mine don't have anything but 135mm on them...don't think it means much!
49 (square thing) 19-140
Don't know, I don't have any numbers on them 
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