1. Migraine headache with eye redness and pain and large pupils Acute attacks of acute angle-closure glaucoma are often triggered by emotional excitement or overexertion, with rapid onset, rapid increase in intraocular pressure, eye pain, ipsilateral forehead headache, and even nausea and vomiting. Most of the attacks occur in one eye, but rarely in both eyes. The eyes are often red, vision can be highly impaired, the pupils are dilated and not round, and the reflex to light is lost. Because of headache and dilated pupils, vomiting. Patients often consult the emergency internal medicine department first during nighttime attacks, and are easily misdiagnosed with intracranial lesions. Because of nausea and vomiting, they can be misdiagnosed as gastrointestinal system diseases, neglecting eye examination and delaying glaucoma treatment, resulting in serious consequences or even blindness. A detailed medical history should be taken to think that it may be glaucoma, and it is not difficult to make a correct diagnosis as long as necessary eye examinations are done. 2. Migraine with ocular redness and pain and small pupils Acute anterior uveitis has an acute onset and is caused by stimulated contraction of the ciliary body, which is a spasmodic ciliary neuralgia, mainly caused by swelling and congestion of the iris and ciliary tissue, edema and irritation of the ciliary nerve endings by toxic substances. The pain is not limited to the eye, but also radiates along the distribution of the trigeminal nerve to the ipsilateral brow arch and cheek, and is more pronounced with light irritation or pressure on the eye, and is worse at night. The pain is more intense if accompanied by herpetic keratitis or glaucoma; chronic inflammation is usually mild or painless. There is also eye redness, photophobia, tearing, often occurring at the same time as the pain, with pupil narrowing and vision loss. This time should be promptly see the ophthalmologist, do not think it is “red eye”, self-purchase eye medicine treatment. This is because in acute inflammation, the pupil shrinks due to the contraction of the pupil sphincter due to the edema and cellular infiltration of the iris tissue and the toxic stimulation of exudates. The pupil’s response to light is blunted or lost, the pupil margin is swollen, and the exudate tends to cause adhesions between the iris and the anterior capsule of the crystal, which distorts the pupil. Early on, if no dilating agent is used to prevent post-iris adhesions, secondary glaucoma and complications such as cataracts can arise, which can seriously affect vision. 3.Far and near vision is normal, read a book and get a headache Some people to about 40 years old, measured vision, see far and near vision is normal, but in reading books and newspapers or look at the computer when the vision is blurred, double vision, text jumping and walking, rest and then look at the gradual clear clear, from far to look at near also need a short time paste before gradually can see the text. Often sleepy and easily fatigued, sensitive to light, eye swelling, sore eyes, foreign body sensation, dry eyes, few tears and other eye symptoms. Some of them have headache or migraine, dizziness, neck swelling, memory loss, irritability, insomnia and dreaminess, facial muscle spasm, etc. Some women think it is menopausal syndrome, but in fact it is visual fatigue. Some are mildly farsighted astigmatism, pay attention to rest, read a book and wear the right glasses on it. Patients with occult strabismus and incomplete light aggregation, when looking at objects, the extraocular muscles are constantly undergoing tension adjustment, which will cause eye muscle fatigue over time. Headache, eye pain, eye pressure pain, along with vertigo, nausea, misreading or diplopia, etc. may occur. In those with external strabismus and insufficient internal fusion, the main symptoms are failure to read for long, blurred vision, diplopia, eye swelling and pain, and headache. The treatment should be completely corrected to strengthen the regulation, which has a reliable effect on improving the fatigue symptoms caused by emmetropia, and the collection training should be done at the same time. The patient should extend the index finger, look at the index finger with both eyes, and train the index finger from far to near, 50 times three times a day to train the pooling function. If conservative treatment is not effective, surgery can be considered. If the headache is caused by internal obliquity, the collection function is too strong and the separation function is not enough, causing eye pain and headache when looking at distant objects for a long time, and the lack of stereo sensation, and the discomfort is still felt after rest. 4, headache with vision loss Some users asked, “I have a headache and my vision seems to be declining, what do I need to see?” I told him, “You should see an ophthalmologist first to find the cause of vision loss. Headache is a common symptom of many diseases, and there are many systemic diseases related to ophthalmology. If the headache is accompanied by visual impairment, there must be changes in the eye examination. Ophthalmology can provide diagnostic clues and basis by checking visual acuity, visual field, fundus and other examinations.