A fundus imaging apparatus includes an aberration measurement unit adapted to measure an aberration of reflected light obtained by irradiating an object to be examined with measurement light an aberration correction unit adapted to correct an aberration of light in accordance with the measured aberration a control unit adapted to repeatedly control processing of the aberration measurement unit and the aberration correction unit and a changing unit adapted to change a first function of a predetermined order representing the aberration to a second function including an order higher than the predetermined order in accordance with at least one of a measurement result obtained by the aberration measurement unit and a control result obtained by the control unit. The aberration correction unit corrects an aberration expressed by the second function.