I do remember (in the late 60s maybe) those skinny slitty sunglasses, I can’t remember what they were called, but we all thought they were so cool. I never had any, tho. We were poor....
I think they’re coming back in style and are being called ‘kanye shades’ because a rapper named Kanye made them popular. Although, in general I think they’re referred to as ‘shutter shades’... not exactly sure if that’s what you’re talking about, though.