The double upward gaze symptom occurs mainly in hypoglycemia with epileptic-like seizures. If there is abnormal hypoglycemia, glucose should be pushed immediately. Hypoglycemia is more common in the clinic, and hypoglycemia can be prevented. Hypoglycemic seizures can cause damage to human physical and mental health, especially to the central nervous system, and even death, so active prevention is especially important, due to the diversity and complexity of the causes of hypoglycemia, and thus the preventive measures vary widely. 1, clinically, drug hypoglycemia is common: diabetic patients treated with insulin and sulfonylurea, especially for patients with liver and kidney insufficiency, should gradually increase the amount of insulin and sulfonylurea during the treatment process, avoiding too fast increase, eating on time after injecting insulin or oral hypoglycemic drugs, also should avoid excessive exercise intensity, while closely monitoring blood sugar, especially during the period of receiving intensive insulin therapy. Diabetic patients and their families should be familiar with this reaction, early prevention, early detection and early treatment, and pay attention to the Somogyi phenomenon to avoid errors in insulin dose adjustment. 2, to the elderly with hypoglycemic drug dose need to be careful: for long-acting sulfonylurea, especially glibenclamide in the application of more cautious, hypoglycemia early symptoms are not obvious, when once it occurs, the symptoms are very serious, should immediately intravenous infusion of glucose, at least 72 hours of close observation, and continuous monitoring of blood glucose concentration, timely adjustment of treatment.