What do numbers mean for eye vision?!
Question:
What do numbers mean for eye vision?
sometimes it says 20/20 sometimes it says 20/70 but what do these number mean?
Answers:
it means you see what others see at 20 feet. if youhave bad vision, and have 20/70, then you have to stand at 20 feet to see what others can see at 70 feet.