Any one or any combination of the following practices constitutes the "practice of optometry":

1. (1) The examination of the human eye, without the use of drugs, medicines or surgery, to ascertain the presence of defects or abnormal conditions which can be corrected by the use of lenses, prisms or ocular exercises;
2. (2) The employment of objective or subjective mechanical means to determine the accommodative or refractive states of the human eye or the range of power of vision of the human eye;
3. (3) The prescription or adaptation without the use of drugs, medicines or surgery, of lenses, prisms, or ocular exercises to correct defects or abnormal conditions of the human eye or to adjust the human eye to the conditions of special occupation.

(RSMo 1939 § 10113, A.L. 1981 S.B. 16)

Prior revision: 1929 § 13501

(1972) Held that activities and practices of respondents which included the completing, preparing, and issuing of the prescription from which contact lenses were fabricated and the fitting of contact lenses constituted the prescription and adaptation of lenses to correct defects or abnormal conditions of the human eye, and thus constituted the practice of optometry and were illegal without a certificate of registration as a registered optometrist issued by the state board of optometry. State ex inf. Danforth v. Dale Curteman, Inc. (Mo.), 480 S.W.2d 848.