Okla. Stat. tit. 36, § 2662

Nothing in this article shall be deemed to alter the relationship of optometrist and patient. No such corporation shall in any way influence the subscriber in his free choice of optometrist, other than to limit its benefit to participating optometrists. Nothing in this article shall be deemed to abridge the right of any optometrist to decline patients in accordance with the standards and practices of such optometrist, and no such corporation shall be deemed to be engaged in the corporate practice of optometry. Laws 1968, c. 150, § 12, emerg. eff. April 9, 1968.