Texas Occupations Code - OCC § 353.151. Directions for Independent Dispenser;  Delegation

(a) If a physician's directions, instructions, or orders are to be performed or a physician's prescription is to be filled by a person who is independent of the physician's office, the directions, instructions, orders, or prescription must be:

(b) A person who dispenses contact lenses may measure the eye or cornea and may evaluate the physical fit of lenses for a particular patient of a physician if the physician has delegated in writing those responsibilities regarding that patient to the person in accordance with Subsection (a) and Section 351.005.

(c) If a physician notes on a spectacle prescription “fit for contacts” or similar language and has, as required by Subsections (a) and (b), specifically delegated to a specific person the authority to make the additional measurements and evaluations necessary for a fully written contact lens prescription, the person may dispense contact lenses to the patient even though the prescription is less than a fully written contact lens prescription.