§ 7121. Definition of practice of ophthalmic dispensing. The practice of the profession of ophthalmic dispensing is defined as adapting and fitting lenses, for the correction of deficiencies, deformities or anomalies of the human eyes, or adapting and fitting non-corrective contact lenses, on written prescriptions from a licensed physician or optometrist. Replacements or duplicates of such lenses may be adapted and dispensed without prescription. Contact lenses may be fitted by an ophthalmic dispenser only under the personal supervision of a licensed physician or optometrist.