Sudden blurred eyes and tinnitus may be caused by physiological factors, cervical spondylosis, Meniere’s disease and other reasons. 1. Physiological factors: patients who stay up late for a long time, excessive fatigue or stress can cause visual fatigue, and the symptoms of sudden blurring of the eyes, ears and tinnitus may occur. 2. Cervical spondylosis: sudden blurred eyes and ears tinnitus may be caused by cervical spondylosis, due to cervical spondylosis may compress the nerves and blood vessels around the cervical vertebrae, resulting in cerebral hypoxia, which may cause tinnitus, dizziness, headache, facial numbness, blurred vision and other symptoms. 3. Meniere’s disease: Suddenly blurred eyes and ears tinnitus may be caused by Meniere’s disease. Patients with Meniere’s disease experience recurring episodes of vertigo, hearing loss, tinnitus and a feeling of stuffiness in the ears. Suddenly blurred eyes and ears tinnitus, if it happens frequently, it is recommended that the patient go to the hospital in time, under the guidance of the doctor reasonable treatment.