Landolt C Broken Ring Optotypes or Japanese Vision Test in Various Sizes and Orientations, an Eye Chart Used for Testing Vision Stock Photo - Image of hospital, medical: 270424328
Landolt ring hi-res stock photography and images - Alamy
Landolt C Broken Ring Optotypes or Japanese Vision Test in Various Sizes and Orientations, an Eye Chart Used for Testing Vision Stock Image - Image of examination, concept: 270424313