The so-called eye fatigue is an eye symptom caused by excessive use of eyesight due to close work or study. The main manifestations are swollen eyes, blurred vision for a long time, sometimes unable to write or read, dry eyes and want to close their eyes. Some people call it "eye fatigue syndrome".
Under normal circumstances, tears in the orbit will form a thin film covering the surface of cornea and conjunctiva, which is called tear film. Every time people blink, they can form a tear film, which can keep their eyes moist and comfortable, so it is not easy to produce symptoms such as dry eyes and fatigue. However, if you stare at a target for a long time (such as using a computer or reading a book), the duration is too long, the blink reflex is less, and the tear film cannot be formed in time, which will lead to dryness of the eye surface and visual fatigue.
With the continuous modernization of office, more and more people operate computers in air-conditioned environment; At the same time, due to the aggravation of learning tasks, there are not a few students who continue to study excessively with their eyes; Others play video games for a long time and watch TV without paying attention to protecting their eyes. These make the number of patients with eye fatigue increase. However, eye fatigue is different from other eye diseases. Most people think it is a normal reaction after overwork, so they prefer to buy their own medicine and eye drops, and few people can go to the hospital for consultation or medical treatment.
Eye drops can't cure eye fatigue.
The reason why most patients with eye fatigue like to drop their own eye drops is related to the fact that eye drops can really relieve fatigue symptoms. At present, there are many kinds of eye drops on the market, which can be roughly divided into therapeutic and nutritional types. Most patients buy the latter, such as Runjie, Pearl Mingmu Liquid, Runerle and so on. These eye drops are mainly nutritious, not for special treatment, but for lubrication. So you can feel comfortable immediately after using it, but some friends regard it as a carry-on treasure and use it for a long time, which is wrong.
Preservatives in eye drops will not only cause allergic reactions, but also affect the normal structure of tear film, fail to form a protective film, and also cause damage to corneal and conjunctival epithelial cells, and even the eyes will be red, swollen and bleeding. Severe cases cause conjunctival adhesion or corneal opacity and inflammation. "Therefore, it is best to choose nutritious eye drops without preservatives, which can only be used temporarily. Long-term eye drops can't really eliminate eye fatigue, but it is harmful to eye health. " Dr. Shi has repeatedly stressed.
Dr. Shi pointed out that there is another kind of misuse of eye drops, and the consequences are more serious. Some patients with eye fatigue directly use hormone eye drops, such as prednisolone, cortisone and strychnine, especially when accompanied by itchy eyes. After use, it can really relieve eye fatigue and eliminate eye discomfort, but some patients have used it for a long time, but they don't know that this may prompt glaucoma. A 17-year-old female middle school student suffered from eye fatigue and decreased vision due to hard work. She bought hormone eye drops for two years, and then her vision dropped sharply, her eyes swelled and her vision narrowed. She didn't know it was glaucoma until she went to the hospital for examination.
Relieve eye fatigue from the root.
First, you can't stay in an air-conditioned room for a long time. Because the air in the air-conditioned room is too dry, it is easy to hurt the eyes, which is also one of the reasons for eye fatigue.
Second, don't spend too much time using computers and reading books. Try not to look when you can. Rest for a few minutes every hour of work, blink more at the same time, keep your eyes moist and recover from eye fatigue.
Third, some measures can be taken, such as the computer position is lower than the eyes and the eyes are in a downward state, which can prevent fatigue.
Fourth, use a small teardrop embolus. That is, the lacrimal passage is sealed with an embolus, so that most of the tears remain in the conjunctival sac and do not flow out from the lacrimal punctum, keeping the orbit moist.