Electro-oculogram is mainly a test to clarify diseases such as vertigo, vestibular neuritis, idiopathic sudden deafness and Meniere’s disease. The examination items of nystagmus electrocardiogram mainly include gaze test, sweep test, position test, etc. The main purpose is to clarify whether dizziness is related to eye diseases. In addition, nystagmus can also check whether the vestibular function is impaired and whether there are vestibular lesions, so nystagmus is of great significance for vestibular neuritis, Meniere’s disease, idiopathic sudden deafness, vertigo and other diseases. It should be noted that during the nystagmus electrogram examination, the patient should remain relaxed and not be too nervous, and should not take central excitatory drugs within 48 hours to avoid affecting the examination results. It is recommended that patients with abnormal nystagmus tests should consult a doctor in time to assess their condition and under the guidance of a professional doctor.