Michigan Compiled Laws, Chapter 752. Crimes and Offenses § 752.51a

(a) “Blind” means a person who has a visual acuity of 20/200 or less in the better eye with correction, or has limitation of his or her field of vision such that the widest diameter of the visual field subtends an angular distance not greater than 20 degrees.

(b) “Cane” means an aid used by a blind pedestrian for travel and identification purposes that is white in color with or without a red tip.

(c) “Crosswalk” means that term as defined in section 10 of the Michigan vehicle code, 1949 PA 300, MCL 257.10.

(d) “Dog guide” means a dog, in harness, that has been formally trained and that is used by a blind person as a travel aid.

(e) “Walker” means an aid used by a blind pedestrian for travel and identification purposes that is white in color or has white legs with or without a red tip.