If a patient with high blood pressure suddenly cannot see, it is usually due to damage to the fundus of the eye caused by high blood pressure, and the patient’s manifestations may include blindness and hemorrhage in the fundus of the eye. Once these symptoms appear, you need to go to the hospital in time, through the ophthalmologic examination to rule out other factors caused by this situation. In addition, it is also necessary to actively control the treatment of blood pressure, in the treatment of blood pressure drugs above nifedipine, nimodipine, captopril, benadryl, valsartan and other drugs, can be good for blood pressure control. At the same time of taking drugs, but also regular review, according to the results of the review to adjust the dosage of drugs, to prevent the emergence of adverse side effects, affecting the normal human health status.