An ophthalmic apparatus that examines an eye by using interference light obtained from reflected light reflected from the eye, the apparatus comprising: a light source device of a wavelength sweeping type; an optical reference system (22, 24) configured to guide light from the light source device as reference light; a calibration member configured to have a predetermined setting length as an optical path length from the light source device, and to include a reflection surface for reflecting light from the light source device; a light receiving element configured to receive interference light for calibration produced by both of reflected light reflected at the reflection surface of the calibration member and the reference light guided by the optical reference system (22, 24); and a control unit, wherein the light source device includes a light source, a moving part, and a driving part configured to periodically drive the moving part, the light source device is configured to have the wavelength of the light outputted from the light source device swept periodically, by the light from the light source being outputted via the moving part that is driven periodically, the light receiving element outputs an interference signal for calibration when the interference light for calibration is received, the control unit is configured to obtain, according to a driving cycle of the moving part, a reference point spread function signal by obtaining the interference signal for calibration outputted from the light receiving element during a given obtainment period in the driving cycle, characterized in that the control unit is configured to adjust, when a peak shape of the reference point spread function signal deviates from a predetermined shape range, a timing to start the obtainment period in the driving cycle of the moving part so that the peak shape of the reference point spread function signal comes to be within predetermined shape range. a light source device of a wavelength sweeping type; an optical reference system (22, 24) configured to guide light from the light source device as reference light; a calibration member configured to have a predetermined setting length as an optical path length from the light source device, and to include a reflection surface for reflecting light from the light source device; a light receiving element configured to receive interference light for calibration produced by both of reflected light reflected at the reflection surface of the calibration member and the reference light guided by the optical reference system (22, 24); and a control unit, wherein the light source device includes a light source, a moving part, and a driving part configured to periodically drive the moving part, the light source device is configured to have the wavelength of the light outputted from the light source device swept periodically, by the light from the light source being outputted via the moving part that is driven periodically, the light receiving element outputs an interference signal for calibration when the interference light for calibration is received, the control unit is configured to obtain, according to a driving cycle of the moving part, a reference point spread function signal by obtaining the interference signal for calibration outputted from the light receiving element during a given obtainment period in the driving cycle, characterized in that the control unit is configured to adjust, when a peak shape of the reference point spread function signal deviates from a predetermined shape range, a timing to start the obtainment period in the driving cycle of the moving part so that the peak shape of the reference point spread function signal comes to be within predetermined shape range.