I was not expecting much from a cheap par of sunglasses but apron arrival I was extremely disappointed... The colorful (rainbow colored) lenses are completely unwearable, my guess is the coating that was put on them was not done evenly and there a 3 distinctive lines running vertical on each side of the lens were the curve starts to increase.  The other 4 lenses are fine, no notable issues with them.
Long story short I would not buy again, better off picking up a cheap pair from a gas station...