Have your store-bought sunglasses lost their effectiveness? It's likely that they're missing your prescription or have the wrong lenses if you're having trouble seeing out of them. Heavyglare sells prescription sunglasses from a range of manufacturers, allowing you to see at the same level outside as you can inside. So, do you believe wearing prescription sunglasses is a smart idea? Let's have a look at what our ophthalmologists have to say about it. In the United States, Heavyglare is one of the most cheap prescription sunglasses brands.