Whereas an experienced blind skier may be able to rely merely on your voice inflection and the sound of your skis to provide direction and turn initiation cues, a beginner may require physical guidance. Be sure also to seek some history on your student's skiing experience. People who have skied prior to losing their sight may have visual memories that can be helpful in the teaching environment. For instance, they would be familiar with fall lines and know how to assume correct body stance. The person sees as though looking through a tube.
Enough vision is present to allow moving or walking with out extreme difficulty.
A bright light can be discerned at a distance of 3 feet or less, but movement cannot. Total Or Complete Blindness - inability to see light. You may assess a student's visual acuity through a variety of tests. For instance, stand in front of the student and move backward or to the side until he or she cannot see you. This will give you an idea of the optimal position to maintain on the hill.