There shall be a board to be known as the Hawaii board of optometry, for the State. The board shall consist of seven members, five of whom shall be licensed optometrists who have actually engaged in the practice of optometry for at least five years and two of whom shall be public members. One of the five licensed optometrist members shall be from a county other than the city and county of Honolulu. No member of the board shall be a stockholder, member of the faculty, or on a board of trustees of any school of optometry.