Maryland Code, Health Occupations § 11-403

(1) Use the title “optometrist”;

(2) If the optometrist holds the degree of doctor of optics or doctor of optometry from a college or university authorized to give the degree, use the title “Doctor” or the abbreviations “Dr.” or “O.D.” with the optometrist's name;

(3) If the optometrist is certified under § 11-404 of this subtitle, use the title “diagnostically certified optometrist”; and

(4) If the optometrist is certified under § 11-404.1 of this subtitle, use the title “therapeutically certified optometrist”.

(1) The words or abbreviations “Doctor”, “Dr.”, “M.D.”, “physician”, or “surgeon”, or any other word or abbreviation that suggests that the optometrist practices medicine; or

(2) Any word or abbreviation that suggests that the optometrist treats diseases or injuries of the human eye, including the words “eye specialist”, “eyesight specialist”, “oculist”, or “ophthalmologist”.