Post cataract surgery, my vision is improved so no longer need my $500 no line bi-focal sunglasses! I only need regular sunglasses! I wanted polarized lenses, & stylish frames….so to keep from trying on sunglasses at big box stores, where the glasses are very germy, I found Blue Planet online. I LOVE my new sunglasses (a tortoise shell frame), & they appear to be quality-made. I appreciated reading about how they are made-eco friendly, & the rave reviews!