What are the differences between clip-on sunglasses and prescription sunglasses?
I wanna buy a pair of sunglasses. Now I wear a pair of prescription eyeglasses and I am thinking if it is possible to make prescription on the sunglasses lenses so that I don't have to change between eyeglasses and sunglasses? Then I searched online and find prescription sunglasses as well as clip-on sunglasses can make that become true.What's the difference between them?
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