If you have swollen eyes after high fever, you need to pay attention to previous hypertension or cerebrovascular lesions. Hypertensive cerebral haemorrhage caused by such diseases can lead to increased intracranial pressure, accompanied by symptoms such as jet vomiting, headache and blurred consciousness; patients with swollen eyes after high fever need to observe whether they are accompanied by congestion in the eyes and increased secretions, and they need to seek medical advice promptly in such cases.