Keninger, if you are one eye blind, then the other has to be 20/30 corrected, and you will fly perfectly.
norton, execly. European rules are dumb. In many Eastern European countries, you couldn't get a license if you are not 20/20 UNcorrected. One man were 20/40 uncorrected, 20/20 corrected, but they didn't allow him to fly...
Now the rules are changin, even for military and space.