The blue eyes of patients may be caused by excessive fatigue, and may also be related to eye trauma or congenital diseases. 1. Overexertion: If the patient is overworked, it will make the eyelid spasm, and the blood flow around the eyes is not smooth, which can be manifested as the situation of blue eyes, and the patient can rest appropriately to make the eyes fatigue to relieve the discomfort of the eyes. 2. Eye trauma: If the eye suffers trauma, there may be subcutaneous bruising, in addition to the manifestation of eye bruising, may be accompanied by eye swelling, pain, edema and so on. If the situation is more serious, the patient will not be able to lift the eyelid, can be appropriate for cold compresses, so that the bleeding blood vessel contraction, relieve the bleeding situation. 3. Congenital diseases: If the congenital development is abnormal, the sclera layer is usually thin, the choroidal layer and the pigmented membrane layer, the color will be transmitted, and the patient may also have a blue eye. It is recommended that patients with blue eyes and other discomforts should consult a doctor to evaluate their condition and follow the doctor’s instructions for treatment.