This document discusses visual disabilities and their assessment and classification. It describes initial assessments of visual acuity, field of vision, contrast and chromatic sensitivity. It then defines blindness and different levels of visual disability from deep to moderate based on ability to perform visual tasks. It also provides a sport-specific classification from B1 to B3 based on visual acuity and field of vision measurements. Finally, it outlines methodology for respectful communication and interaction with those who have visual disabilities, including recommendations for speech, social interaction, space considerations and accessible materials.