C.R.S. § 12-275-105: Persons entitled to practice optometry - title protection of optometrists.

It shall be unlawful for any person to practice optometry in this state except those who are duly licensed optometrists pursuant to the provisions of this article 275. A person licensed as an optometrist pursuant to the provisions of this article 275 may use the title "optometrist", the initials "O.D.", or the term "doctor of optometry". No other person shall use the title "optometrist", "O.D.", "doctor of optometry", or any other word or abbreviation to indicate or induce others to believe that one is licensed to practice optometry in this state.