Yep! You just get a prescription from the eye doctor and enter the values on the site. 20 bucks later and boom you have some very reliable and inexpensive glasses. I've been using these guys for years and had basically zero issues.
Yep, also need your pupillary distance. i havent gotten an exam in so long i cant remember if thats included in the prescript. Luckily my eyesight hasnt gotten worse (yet).
Wearing my 26 dollar photochromic zennis for this comment. Been using zenni glasses for the better part of a decade.
It's not usually but you can print out the little gauge thing or use their in browser tool if you have a Webcam and don't mind your face being scanned by a discount glasses company in the decade of machine learning we're about to go through
I got a pair of prescription glasses and sun glasses from Payne glasses for $80. I stopped wearing contacts a few years ago, and I work outside. I really missed having sun glasses.