Colorado Revised Statutes Title 12. Professions and Occupations § 12-275-106. Persons excluded from operation of this article

(a) Professional practice by a physician or surgeon licensed to practice medicine under the laws of the state of Colorado and ancillary or technical assistants working under the direction of a licensed physician or surgeon, with the exception of the fitting of contact lenses that must be done under the physician's or surgeon's direct supervision;

(b) The practice of optometry in the discharge of their official duties by optometrists or physicians and surgeons in the service of the United States armed forces, public health service, Coast Guard, or veterans administration;

(c) Opticians, persons, firms, and corporations that duplicate or repair spectacles or eyeglasses; opticians, persons, firms, and corporations that supply or sell spectacles, eyeglasses, or ophthalmic lenses, including but not limited to contact lenses, if the spectacles, eyeglasses, and ophthalmic lenses are provided pursuant to a valid prescription;

(d) Persons serving a postdoctorate residency or an optometry student internship under the supervision of an optometrist licensed in Colorado as part of a curriculum from an accredited college of optometry.