Opti-Ray Vintage Sunglasses

I'm not sure if these are considered tortoise shell or not. But the gold and brown rainbow effect is quite stunning and remind me of Elton John for some odd reason? Probably from the 80's. I hate to part with them but you know, dollars are in our closets. I always believed these to be a woman's pair of sunglasses but I've worn them many times and not once has anyone commented so I'll say they're Unisex, ok.