No optometrist, licensed under Chapter 13 of Title 59 of the Oklahoma Statutes, shall enter into any agreement, contract, arrangement, practice, or understanding, written or otherwise, with any optical supplier engaged in the sale of optical goods and materials to the public, whereby persons are referred by the optical supplier to said licensed person, and/or whereby persons are referred back to the optical supplier for the purchase of optical goods and materials.
Laws 1971, c. 92, § 3, emerg. eff. April 17, 1971.