Before revision: Landolt C optotypes in various sizes and orientations Golovin-Sivtsev Table A Landolt C, also known as a Landolt ring, Landolt broken ring or Japanese vision test, is an optotype , i.e.
After revision: Landolt C optotypes in various sizes and orientations Golovin-Sivtsev Table The Landolt C, also known as a Landolt ring, Landolt broken ring or Japanese vision test, is an optotype ,