Abnormal visual field examination indicates that the patient’s field of vision is defective, usually due to glaucoma, ischemic optic neuropathy, and fundus hemorrhage. Visual field examination is mainly to observe whether there is any change in the size of the field of vision of the patient’s eyes, while visual acuity examination is mainly to observe whether there is any change in the visual acuity of the patient’s eyes, and visual acuity and field of vision are the two important dimensions of vision. Many ophthalmologic diseases can affect the visual field, such as glaucoma patients will have a reduced visual field, while ischemic optic neuropathy will lead to localized defects in the field of vision, and fundus hemorrhage will be caused by hemorrhage blockage caused by part of the area can not feel the light stimulation, which will also lead to visual field defects. It is recommended that patients with abnormal visual field examinations should consult a doctor in time to evaluate their condition and have a reasonable treatment plan formulated by the doctor.