Okla. Stat. tit. 59, § 646.6

A. Any seller or any person authorized to dispense contact lenses or visual aid glasses in this state who fills a prescription bears the full responsibility for the accurate dispensing of the contact lenses or visual aid glasses provided under the prescription. At no time shall any changes or substitutions be made, including brand, type of lenses or ophthalmic parameters, without the direction of the optometrist who issued the contact lens or visual aid glasses prescription. B. The optometrist shall not be liable for any damages for injury resulting from the packaging or manufacturing of the contact lenses or visual aid glasses.