System settings
For the gaze angle experiments, comparisonbetween VG and Otowere
performed in Shanghai Changzheng Hospital, while the tests between VG
and ESC were performed at Fudan University affiliated Eye and ENT
hospital. In either experiment, we were inclined to record from right
eyes. Recording from the left eye only if the patient could not see the
target from the right eye. All the experiments were applied by the
trained examiners.