In ophthalmic clinical clinics, patients often seek medical attention due to eye pain. This type of chief complaint is often similar, and some patients may experience eye pain, dryness, foreign body sensation, soreness, etc. due to certain "triggers" such as excessive eye use, staying up late, reading in the dark room, etc. Some patients may feel that there is no obvious cause and suddenly experience eye pain. So, what factors are causing the most common "eye pain" in ophthalmic clinics? What situations prompt us to seek medical attention in a timely manner? Let's take a look at the most common causes and countermeasures of eye pain. Visual fatigue caused by excessive use of the eyes is a common cause of eye pain in daily life. Overuse of the eyes can easily lead to nerve and tissue fatigue in the eyes, and when using electronic products for a long time, our blink frequency will decrease, making it easier for the eyes to feel dry and painful. If you need to work or study for a long time in daily life, it is necessary to relax your eyes at regular intervals. You can look far away, close your eyes to rest, or do eye exercises to regulate your eye muscles. Relaxing your eyes appropriately can effectively alleviate the problem of excessive eye use. Eye herpes zoster is an acute infectious skin disease caused by the varicella zoster virus. Eye herpes zoster often manifests as a burning sensation or neuralgia in the skin area of the eyelid innervated by the trigeminal nerve. It may be accompanied by eye symptoms such as redness, photophobia, and tearing, as well as mild fatigue, low fever, and other systemic symptoms. Local lymph nodes may have swelling and tenderness. As the disease progresses, clustered blister like rash can be seen on the affected skin, but it is limited to one side and does not cross the midline. It is infectious to people with lower immunity. The main strategy is to use local and systemic antiviral drugs, supplemented by painkillers to relieve pain. To avoid residual neuropathic pain, nutritional nerve drugs can be added. In addition, exercising, balancing nutrition, and improving the body's immune system will help prevent the occurrence of shingles. With the popularity of mobile phones, televisions, air conditioning and other products in daily life, more and more people are experiencing dry eye syndrome, and this disease is becoming younger and younger. Insufficient moisture on the surface of the eyeball can cause soreness, stinging, or foreign body sensation in the eyes, and may also cause symptoms such as tearing, photophobia, and blurred vision. These symptoms are more likely to be induced outdoors in low temperatures or strong winds. Countermeasures: In daily life, supplement more vegetables and fruits; When blowing air conditioning indoors, a humidifier can be used to increase environmental humidity; When using electronic screens, try to control the time within 40 minutes. For severe dry eye symptoms, artificial tears can be used appropriately to alleviate the symptoms. In addition, eye hot compress is also beneficial for relieving dry eye related symptoms. Conjunctivitis is inflammation caused by infection or stimulation of the conjunctiva in the eyes, and the pathogenic bacteria can be bacteria, viruses, or fungi. Eye pain caused by conjunctivitis is usually accompanied by symptoms such as redness, tearing, increased secretion, and itching in the eyes. Some conjunctivitis can self heal without treatment, but in most cases, corresponding drugs or eye drops need to be used for treatment. And bacterial or viral conjunctivitis has a certain degree of infectivity. In daily life, attention should be paid to avoiding rubbing the eyes with hands and washing hands frequently,