N.C. Gen. Stat. § 90-127.3
All persons licensed or registered under this Chapter shall upon request give each patient having received an eye examination a copy of the patient's spectacle prescription, consistent with Federal Trade Commission rules and guidelines. No person, firm or corporation licensed or registered under Article 17 of this Chapter shall fill a prescription or dispense lenses, other than spectacle lenses, unless the prescription specifically states on its face that the prescriber intends it to be for contact lenses and includes the type and specifications of the contact lenses being prescribed. The prescriber shall state the expiration date on the face of every prescription, and the expiration date shall be no earlier than 365 days after the examination date.
Any person, firm or corporation that dispenses contact lenses on the prescription of a practitioner licensed under Articles 1 or 6 of this Chapter shall, at the time of delivery of the lenses, inform the recipient both orally and in writing that the recipient return to the prescriber for insertion of the lens, instruction on lens insertion and care, and to ascertain the accuracy and suitability of the prescribed lens. The statement shall also state that if the recipient does not return to the prescriber after delivery of the lens for the purposes stated above, the prescriber shall not be responsible for any damages or injury resulting from the prescribed lens, except that this sentence does not apply if the dispenser and the prescriber are the same person.
Prescriptions filled pursuant to this section shall be kept on file by the prescriber and the person filling the prescription for at least 24 months after the prescription is filled.
N.C. Gen. Stat. § 90-127.3