Tuesday, December 20, 2011

What Does 20/40 Vision Mean?

396545384
Posted by at
Labels:

1 comment:

  1. rebesDecember 20, 2011 at 9:00 PM

    boop - It means that what a person with perfect vision can see clearly from 40 feet away, you can see clearly from 20 feet away.

    ReplyDelete

Subscribe to: Post Comments (Atom)