Retinal detachment often occurs in patients with ocular trauma, refractive error peripheral retinal degeneration, and especially in those with moderate or high myopia. Fundus examination often reveals peripheral retinal degeneration areas, dry holes, and even horseshoe-shaped fissures in some cases, if we give it a laser in time to avoid the pain of retinal detachment reset surgery. The author’s routine dilated pupil examination in the clinic for those patients with moderate or high myopia often reveals lesions. I have treated a number of patients with horseshoe shaped fissures to avoid the possibility of retinal detachment. So how do you detect a lesion in the eye early? Flashing sensation in front of the eye We know that the retina is the innermost layer of the eye, and it has a very close relationship with the vitreous humor. The retina can develop horseshoe-shaped fissures due to vitreous pulling. The retina is stretched, which causes a bioelectric effect on the retina, and the patient feels a flashing sensation, so it is important to seek medical attention and have a detailed fundus examination done by a specialist vitreoretinal doctor to detect the lesion. If the laser treatment is done in time, the result will be very good! If the patient misses this period, he or she will have a black shadow in front of the eyes or incomplete vision in front of the eyes, which means that retinal detachment has already occurred. At this time, go to the hospital to find a specialist vitreoretinal doctor for detailed examination, the doctor will do the appropriate treatment according to the extent of retinal detachment, such as laser, gas injection, external retinal repositioning, etc. Some patients don’t pay much attention to it or feel dull, and only when their vision decreases to the index in front of their eyes do they feel that they need to consult a doctor, at this time, the examination reveals that the retinal detachment is very extensive and affects the macula area. The longer the detachment, the worse the recovery of vision after surgery. If the detachment is more than 4 weeks, the recovery of vision will be very poor, so it is necessary to seek timely medical attention! For patients who have suffered eye trauma, patients must seek professional ophthalmologist examination after vision loss, otherwise their condition will be delayed. The author once met a soccer player who went to the hospital for an examination after receiving trauma to the eye, and no retinal detachment was found. Although the doctor gave the patient an ultrasound of the eye, but still no retinal detachment was found, and then it was treated according to retinal concussion, which was slightly improved. However, the patient’s vision soon decreased and the black shadows in front of his eyes expanded. After being referred to me, the retina was found to have detached after dilated pupil examination, and we operated the patient in time to restore his vision to normal eventually. For retinal detachment in one eye, the other eye should also be examined in detail. Especially for patients who have undergone retinal detachment resurfacing surgery, the other eye must be examined. The author has performed external cushion pressure surgery on a patient with retinal detachment, and the patient recovered very well with a vision of 1.0 (corrected). We examined the other eye routinely with dilated pupils and found a horseshoe-shaped fissure in the peripheral retina and gave laser promptly. It can be asserted that if the fissure had not been detected in time, the patient would have developed retinal detachment in this eye in less than a month as well as in the operated eye. Prevention What can be done to prevent retinal detachment for those who are prone to retinal detachment? Methods: Regular review by a professional vitreoretinal ophthalmologist; avoiding external forces on the eye, such as hitting the eye, falling, and doing eye rotation movements; and timely laser intervention, although not all patients with fissures need laser intervention, some just need regular follow-up. The author has performed laser treatment of peripheral retinal fissures in five patients in one afternoon. Patients with retinal detachment should be operated early, as the recovery of vision is often poor when the detachment extends to the macula!