Xiao Wang is a senior student nearing graduation, not only busy looking for a job, but also often have to look up information online and write papers. Recently, several things have been a little bit, happy, and roommates to play online games, video chat and so on all night long, really busy in the dark. But in the past two days, he often inexplicably felt as if there was lightning crossing in front of his eyes, looking at things as if there was a fog, and even some distortion. This morning, the upper half of the self-consciousness has been invisible, the party knows that there is a big problem, so rushed to the hospital to see what. Through the doctor’s detailed examination, Xiao Wang learned that he had a retinal detachment. So what is retinal detachment? Retinal detachment is divided into two categories: primary and secondary, and secondary generally has a clear cause and is not difficult to diagnose clinically. Xiao Wang’s retinal detachment is primary, which is also more common in clinical practice. The key to primary retinal detachment is the formation of retinal fissure, which allows the liquefied vitreous body to enter the subretinal space through the fissure, resulting in the separation of the retinal neuroepithelium from the pigment epithelium. To use a simple analogy, the eye is like a camera, and the retina is equivalent to the photographic film in the camera. Retinal detachment is like a separation between the film negative and the light-sensitive material, causing a disruption of the eye’s light-sensitive system and thus an imaging disorder. There are four main groups of people with high prevalence: patients with medium to high myopia myopia; patients with eye trauma, repeated vitreous hemorrhage; post-cataract surgery patients and genetic factors. Xiao Wang’s case belongs to the first category. Retinal detachment usually requires surgical treatment. For patients who have just developed symptoms of retina and the presence of dry retinal fissure is found during examination or combined with superficial retinal detachment, treatment by fundus laser can be adopted. In addition, if a severe retinal degeneration zone is found during a physical examination, laser treatment can also be performed prophylactically. Depending on each patient’s condition, both external and internal surgery may be used to treat retinal detachment. The external surgery consists of scleral ligation and extra-scleral compression, while the internal surgery consists of vitrectomy. During the above basic surgical procedures, extra-scleral condensation, photocoagulation and electrocoagulation can be used selectively to artificially cause scarring adhesions between the detached retina and the uvea to achieve closure of the fissure. Doctors sometimes also inject gas or silicone oil into the eye, which can play the role of parietal pressure on the retina to promote long-term reset of the retina, and these patients are required to remain in prone position for a certain period of time after surgery. Wang was very concerned about the degree of vision recovery after surgery. In fact, the recovery of post-operative vision is related to many factors, and it is difficult to make a general statement, mainly related to the following factors. One is whether the macula is detached or not, if the macula is detached, then it is difficult to recover the central vision completely. Secondly, the time of retinal detachment is closely related. Theoretically, if the retina is detached for more than 7 days, the photoreceptor cells of the retina may cause irreversible damage. Thirdly, it is related to the extent of retinal detachment; the larger the detachment, the greater the impact on vision. Fourth, it is also related to the preoperative visual acuity, the time of surgery and the damage during surgery. In addition, the recovery of visual function is slower in the elderly than in the young. The success of surgery is only half of the treatment. Patients with retinal detachment must pay attention to the following issues in daily life: use of eyes should be moderate; do not lift heavy objects (especially in low and bending position); do not do strenuous activities; one myopic eye has been operated, the other eye should be checked regularly at the hospital; prevent eye trauma; regular checkups, preferably once every six months.