The retina is a film-like structure consisting of a dense array of photoreceptor cells and nerve fibers, located at the back of the eyeball, against the inner wall of the eyeball. The retina is equivalent to the camera’s negative film and is an important part of the eye’s ability to see things. If the film is detached from the wall of the ball, the photoreceptor cells will not be able to obtain the corresponding blood supply and oxygen supply, and eventually the death of the photoreceptor cells will occur, and the thing can no longer be seen.
The retina is detached
According to the different pathogenesis of retinal detachment, it can be divided into two categories: rhegmatogenous retinal detachment and exudative retinal detachment. The most common clinically, rhegmatogenous retinal detachment.
The so-called rhegmatogenous retinal detachment is the retinal tear. After the retina has a hole, the fluid inside the eyeball enters the retina from this hole, causing the retina to detach. There are two common causes of retinal tears:
The first is that the retina becomes weak. For people with high myopia or some genetic factors, their retinas often have thinned areas, and patients often have no symptoms. They need to be examined by doctors to see the fundus. If this part of the person is not found in time, the retinal tears may occur and retinal detachment may occur.
The second is that the retina is “smashed” by the viscous vitreous traction. It is common when the eye is traumatized, and the vitreous body violently oscillates in the eyeball. In this process, the retina is easily broken. It is easy to appear in diving, bungee jumping, boxing, and vigorous confrontational sports such as basketball and football. It needs to be vigilant.
Exudative retinal detachment, that is, abnormalities in the retina itself or surrounding structures, leads to leakage of fluid inside the blood vessel, which accumulates between the retina and the wall of the eyeball. Common causes include eye inflammation, tumors, hypertension, hypoproteinemia, and surgical damage.
Therefore, it is recommended that people with high myopia go to the hospital for fundus examination every year. Ordinary people should pay attention to strengthening the protection of the eyes during vigorous confrontational sports such as diving, bungee jumping, boxing, basketball, and football.
Can retinal detachment be cured?
In the early stage of retinal detachment, symptoms such as dark shadows and flashing sensations may appear. As the range of disengagement expands, a sense of obstruction may appear, as if there is a hand in front of the eyes. If the condition continues to worsen, it may eventually lead to blindness.
Rhegmatogenous retinal detachment usually requires surgery, and the purpose of the surgery is to reattach the retina to the wall of the ball, which is an anatomical reduction. However, whether the patient’s vision can be restored depends on the time and extent of retinal detachment before surgery, whether it affects the central region of the retina, and whether there are other serious complications. The more timely the surgery is done, the better the recovery of vision. Some very severe retinal detachments may cause irreversible vision loss.
Exudative retinal detachment should be treated differently depending on the cause, and in some cases even surgical intervention is needed to promote fluid absorption. The functional recovery of the retina also depends on the quality of the primary disease control and the time and extent of retinal detachment, whether it affects the central region of the retina, and whether there are other serious complications.