The following words and phrases when used in this chapter shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Blind." Visual acuity of three-sixtieths or ten two-hundredths, or less normal vision.
"Commission." The State Veterans' Commission established under section 1702 (relating to State Veterans' Commission).
"Paraplegic." The bilateral paralysis of the upper or lower extremities of the body.