The best humans can do is 20/10, with 20/20 being our average.
Any more than that would require our cones to be packed together more tightly to resolve light better.
Apparently a woman named Veronica Seider had a 20/2 visual acuity (according to Guinness) and that she could identify people from 1.5km away, but it seems dubious.
They’re clearly for fashion, not vision
who wants to be limited to 20/20 vision? why not get 30/30
The funny thing is, 30/30 vision means the same thing as 20/20 vision
30/30 would just mean you see at 30 feet at the same clarity that typical eyes see at 30 feet
The best humans can do is 20/10, with 20/20 being our average.
Any more than that would require our cones to be packed together more tightly to resolve light better.
Apparently a woman named Veronica Seider had a 20/2 visual acuity (according to Guinness) and that she could identify people from 1.5km away, but it seems dubious.
https://www.guinnessworldrecords.com/world-records/smallest-visible-object
It’s for that half glasses glare “I’m deep” dramatic flair.