6/14       \_ I see.  For near-sightedness, how does 20/xx translate to/from
              the number of "degrees" that some people use to measure near-
              sightedness?
                \_ maybe you mean diopters. there's only approximate
                relations between 20/x ratings and diopters.
                see http://www.lpf.com/source/rk/20something.html
                   \_ I don't know.  I was told that my short-sightedness is
                      simply "550", and everyone in my home country seems to
                      understand it.
                      \_ That's probably meant as -5.50