With the development of information technology, computer operation is almost an inevitable part of modern life. Many people have to face the computer all day long and look at the computer fluorescent screen because of their work, which will easily “wear out” their eyes in the long run. We often hear patients complaining of eye strain or headaches, with computer workers accounting for the majority of them. Most patients complain of dry, burning eyes or a foreign body sensation, unstable or temporarily blurred vision, and may also feel heavy eyelids, swollen eyes or even headaches. A detailed eye examination may also reveal signs such as conjunctival congestion, decreased visual acuity, decreased regulation, decreased tear production, and in severe cases, even increased intraocular pressure. If you have to face the computer all day long, how can you minimize the degree of damage to the eyes? First need to understand the relationship between the eyes and the following factors: working posture and distance working too close or incorrect posture, too close to the computer fluorescent screen, more vulnerable to radiation damage, especially when using a laptop computer, due to the fluorescent screen is too small, resulting in the user must work at close range, head forward, neck muscle force, it is easy to form work strain, aggravating eye fatigue. Screen quality and clarity of some computers because of the use of too much time, resulting in lower screen quality, clarity degradation, thus causing difficulties in reading. The light in the work environment is too strong or too weak, resulting in a strong reaction between the screen and the outside world, easy to cause eye irritation. Of course, these can also be improved, like the degree of eye fatigue and the length of time related to work, so the best way to avoid eye fatigue is to rest properly, do not operate continuously. If you are a glasses person, then it is important to match a pair of suitable glasses. For people over 40, it is best to use bifocal lenses or to wear glasses with a lower prescription when typing. Working posture and distance is also important, try to maintain a distance of more than 60 cm, adjust a most appropriate posture, so that the line of sight can be maintained down about thirty degrees, such an angle can make the neck muscles relax, and make the surface of the eye exposed to the air to minimize the area. Whether the luminosity and clarity of the screen are appropriate, whether the light of the environment is soft, and whether the height and comfort of the table and chair can match the height of the terminal are all elements that must be considered. If there are related eye symptoms still need to come to the hospital for examination and treatment.