There are also many online consultations about retinal detachment, which shows that people are not very familiar with the disease and are not very clear about its development and the harm it can do to their vision. Therefore, I have summarized the most frequently asked questions by patients and introduced the knowledge about this disease in the form of Q&A. 1.What kind of membrane is the retina? The retina is a transparent membrane of nerve tissue composed of a variety of nerve cells and nerve fibers. It can be divided into 10 layers, including photoreceptors, nerve cells responsible for conduction, ganglion cells, and nerve fibers. It is clear from these components that the retina is the nerve tissue responsible for sensing light. It is the most important structure for forming a person’s vision. It is easy to understand that once problems occur in the retina, vision must be severely reduced. 2. Where is the retina located in the eye? The human eye is a sphere-like shape, so it is called: the eyeball. And the retina is located at the back of the eye, the innermost layer of the sphere. The outer side of the retina is close to the choroid, and the inner side is close to the vitreous humor, which is filled in the eyeball. The vitreous humor has the role of supporting the retina and maintaining a stable position of the retina. 3.What do you mean by retinal detachment? When the retina leaves its original position and bulges towards the vitreous, it is a retinal detachment. 4.Why does the retina detach? The production of the fissure and the pulling of the vitreous body are the important causes of detachment. The most important cause of retinal detachment is the creation of a fissure. Through the fissure, the fluid in the eye flows into the retina below, forming a large amount of subretinal fluid, which separates the retina from the tissue below, forming retinal detachment. Secondly, due to the problem of vitreous body, which has a supporting effect on the retina, the vitreous body is separated from the retina, making the retina less stable, and in the process of detachment, the vitreous body pulls and pulls the retina, causing the retina to be torn, producing a fissure, and there is a constant pulling force, causing the retina to rapidly bulge in the direction of the vitreous body and detach. 5.What conditions are likely to cause retinal detachment? In myopic eyes, especially in high level myopia, the retina becomes thin, and the peripheral part is even so thin that spontaneous rupture holes are formed, leading to retinal detachment. Detachment of the vitreous from the retina, pulling the retina off. Trauma, strongly conducted to the retina, tears or pulls the retina, leading to retinal detachment. Retinal vascular disease, which produces blood accumulation in the vitreous, which is not absorbed for a long time and forms fibrous strips in the vitreous, pulling the retina and causing detachment.