Mich. Comp. Laws § 393.105

Sec. 5. There shall be received in said school as pupils all such blind persons and partially blind persons whose defective sight prevents their receiving instruction in the common schools, between the ages of 7 and 19 years, as are in suitable condition of body and mind to receive instruction, and who are residents of this state, and if minors whose parents or guardians are residents of this state, without charge for tuition, board, lodging, washing, medicine or medical attendance: Provided, The board of control may, in their discretion, admit persons under the age of 7 or over 19 years.