It is unlawful for a person to engage in the practice of optometry or to display a sign or in any other way to advertise or hold himself or herself out as an optometrist without having first obtained an optometrist license from the board under the provisions of this chapter or under the provisions of any former act relating to the practice of optometry. The practice of optometry includes the performing or controlling of any acts set forth in Section 3041.
In any prosecution for a violation of this section, the use of test cards, test lenses, or of trial frames is prima facie evidence of the practice of optometry.