While I used to use Zenni glasses online and had some success with them, I really should have known better and shouldn't have taken a risk like that (though obviously it's not gonna do super permanent damage if any since I didn't wear it too long).

I wouldn't be surprised if their lenses were not the correct power, and if their cylindrical prescription is on the wrong axes, etc. I don't trust some random sweat shop in China doing this (don't quote me on this but I am pretty sure the operations is done in China).

Since the frame market is monopolized by some sleazy business, I wish I could just buy a decent frame from Zenni and give it to a qualified local optician who can fit a nice lens in it.