Md. Code, Health Occ. § 11-304

(a) An applicant who otherwise qualifies for a license is entitled to be examined as provided in this section. (b) Periodically, but not more often than once every 6 months, the Board shall give examinations to applicants at the times and places that the Board determines. (c) The Board shall notify each qualified applicant of the time and place of examination. (d) (1) Except as otherwise provided in this subsection, the Board shall determine the subjects, scope, form, and passing score for examinations administered under this subtitle. (2) The subjects examined shall include: (i) The anatomy, physiology, and pathology of the human eye; and (ii) The use of all instruments used for examination of the human eye. (3) The examination may include any subject that relates to optics and optometry: (i) Contained in any textbook; or (ii) Taught at any accredited educational institution that teaches optics, optometry, and other related subjects. (e) (1) An applicant who fails the examination may take the next regularly scheduled examination. (2) The applicant shall pay to the Board a reexamination fee set by the Board for each reexamination.