Retinal detachment is one of the more serious and common blinding eye diseases. Retinal detachment is mostly seen in people aged 40-70 years old, most of whom have high myopia, and in recent years, there has been a rising trend of retinal detachment in young people. The retina is a translucent membrane, an important tissue for sensing external light information, located in the inner wall of the eye. Its fine network-like structure and rich metabolic and physiological functions enable people to clearly perceive the outside world, and when the retina is pulled up from its normal position, it causes retinal detachment, just like wallpaper detaching from the wall. The detached retina is deprived of a good blood supply and gradually loses its visual function. In short, the occurrence of retinal detachment usually has two prerequisites. 1. retinal degeneration 2. vitreous degeneration Retinal degeneration is the basis for the formation of retinal fissures. The peripheral part of the retina and the macula are very thin and have a low blood supply, which makes it easy for retinal degeneration and thinning to gradually evolve into retinal fissures. Retinal degeneration is present in about 7% of normal eyes. The vitreous humor is a clear, gelatinous substance that fills the cavity of the eye. In addition to providing nutrients to the retina, the vitreous body acts as an internal support and is closely attached to the retina. In some cases, some parts of the vitreous body become attached to the retina, and some parts may become degenerative and liquefied for various reasons. The rapid movement of the eye will produce continuous rotational oscillation of the vitreous, which will instead cause a pulling force on the retina or tear the retina, causing the intraocular fluid to enter under the retina and lift the retina from its original position. This shows that primary retinal detachment is the result of a combination of two factors, retinal degeneration and vitreous degeneration, and retinal detachment will almost always lead to blindness. What factors are likely to lead to retinal detachment? 1.Myopic eyes: Due to the high incidence of retinal degeneration and vitreous degeneration in myopic eyes, degeneration reduces the adhesion and traction resistance of the retina, which can easily form retinal fissures. 2. Aphakic eye: It occurs after cataract extraction and may be related to vitreous movement that fills the original crystal space. The enlargement of the vitreous cavity increases the space for vitreous oscillation, which increases its traction on the retina. This induces the vitreous body to pull on the retina of the aphakic eye. 3.Age-related: After the age of 45, the vitreous body is mostly degenerated and liquefied, such as accompanied by various retinal degeneration, and thus prone to retinal detachment. 4, trauma: in contusion, the moment of impact movement can temporarily deform the eye, although the wall of the eye can comply with the external force, but the vitreous cannot, at this time the vitreous base is separated from the wall of the ball, which is easy to produce retinal fissure. For such a serious and sudden blindness, it is important to understand the prognostic symptoms of the disease. Most retinal detachments have some early symptoms: such as flashing sensation, sudden appearance of floating objects in the eye, which are actually symptoms of posterior vitreous detachment. Middle-aged and elderly people, especially those with high myopia, should be highly alert to the possibility of retinal detachment, which can be avoided by fundus laser treatment if diagnosed in time. In limited retinal detachment, some sensitive patients may notice a visual field defect that involves the retinal detachment in the posterior pole, which leads to a sharp loss of central vision. When the retinal detachment occurs only in the peripheral area or when a superficial detachment occurs in the posterior pole, in addition to the loss of central vision, there is also a distortion of visual objects. Once a retinal detachment occurs, surgery becomes the only option. There are various surgical options for aperture-derived retinal detachment. The purpose of surgery is to close the hole, eliminate or reduce the pull of the vitreous on the retina, remove the proliferative membrane to loosen the retina, and reattach the detached retinal neuroepithelium and pigment epithelium to restore the nutrient supply to the retina and restore its function. Therefore, doctors will decide the choice according to the nature and extent of retinal detachment, the size and shape of the fissure, the degeneration area, the formation of retinal surface membrane, the degree of vitreous atrophy and other factors.1, extra-scleral compression or ring ligation and release of fluid, gas-liquid exchange, etc. 90% of pore-derived retinal detachment can be surgically reset, and the recovery of vision after surgery depends on the time and extent of retinal detachment and whether the macula is involved. For retinal detachments that are more extensive, have a longer duration, are old, or have complications, vitrectomy is required for treatment. This is an eye microsurgery developed in the early 70s, which is a big revolution in the history of ophthalmic treatment. It has developed very rapidly in recent years, and the surgical methods and instruments are constantly improving, and the success of the surgery has also increased dramatically, and its appearance has made it possible to treat many eye diseases that were considered incurable in the past. Retinal detachment is a serious eye disease. After surgery to reset the retina, the patient’s vision usually takes a long time to recover, and it is usually difficult to return to the level before the retinal detachment. Some patients’ vision does not recover after surgery. The more severe the retinal detachment and the longer it has been detached, the more difficult it is to recover vision. It is for this reason that early detection and treatment is crucial! Preventive measures: There are many patients who already have retinal degeneration or fissure lesions in the early stage, and because of the vitreous apposition to the retinal surface, the condition of retinal detachment does not occur. Usually, after the age of 45, the vitreous body undergoes various degenerative changes, and such changes, if they occur in high-risk groups, increase the retinal incidence significantly, so it is recommended that patients over the age of 40 (with liquefaction of the vitreous body), myopia, eyes affected by Therefore, it is recommended that an ophthalmologic examination be performed as soon as possible after an impact or a family history of retinal detachment. With dilated pupils, an experienced ophthalmologist will perform a thorough examination with a special reflective lens to see if you have a retinal fissure or are at risk for retinal detachment. And patients who have had a retinal detachment in one eye should remember to have a follow-up examination of the other eye.