Jennifer C asked:


When I first bought my sunglasses (from my school student store), it had a “polarized” sticker on it. I tested them to see if they were polarized by putting them on and looking at my laptop’s LCD screen. When i tilted my head, the screen turned black, so i know these sunglasses must be polarzed.

My question is, how in the world can my sunglasses be polarzed when I purchased them for only $20-$30? Do you think it’s because the quality of polarization is not very good?

Thanks.

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