Nevada StatutesChapter 636 - OptometryAPPLICABILITY OF CHAPTER636.390 - Chapter does not apply to licensed physicians and surgeons.636.393 - Chapter does not apply to certain students, clinicians or instructors.636.395 - Chapter does not prohibit certain sales.ENFORCEMENT AND PENALTIES636.405 - Duties of peace officers and district attorneys.636.407 - Injunctive relief available to Board.636.410 - Penalties for violations.