A person is exempt from the continuing education requirements of Section 351.308 if the person:
(1) holds a license but does not practice optometry or therapeutic optometry in this state;
(2) served in the regular armed forces of the United States during part of the most recent license term;
(3) submits proof to the board that the person suffered a serious or disabling illness or physical disability preventing the person from complying with the requirements during the most recent license term; or
(4) was first licensed during the period preceding the license renewal date.