-
Classification of retinal detachment.
There are many ways to classify the retina. According to the mechanism of pathogenesis, it can be divided into rhegmatogenous, traction and exudative retinal detachment. According to the extent of retinal detachment, it can be divided into two types: partial and complete, and according to its **, it can be divided into two categories: primary and secondary.
1.Primary retinal detachment.
Primary retinal detachment, also known as rhegmatogenous retinal detachment, is the passage of fluid in the vitreous cavity into the subretina through a tear in the retina, causing separation of the neuroepithelium and the pigment epithelium. Such patients often have retinal degeneration, atrophy, thinning, or high myopia, vitreous liquefaction, detachment, condensation and adhesion to the retina due to certain factors such as high myopia, advanced age, etc.
2.Secondary retinal detachment.
The cause of secondary retinal detachment is relatively clear, which is caused by other diseases of the eye or some systemic diseases, such as exudative retinitis, acute diffuse choroiditis, pregnancy-induced retinopathy, etc., and a large amount of exudate accumulates under the retina, resulting in retinal detachment. After vitreous hemorrhage in some eye trauma or periretinal venous inflammation, the retina is pulled down by the proliferating vitreous cords. There are also choroidal tumors or subretinal parasites that can push the retina up, causing retinal detachment.
Systemic diseases such as diabetic vitreoretinopathy, which result in vitreous proliferation pulling the retina apart.
There are also some retinal detachments caused by special eye diseases, such as congenital choroidal defects, Marfan syndrome, etc., which are related to congenital dysplasia of the fundus.
-
Vision will be very blurry, there will be floating objects in front of your eyes, there will be flickering, you will find some shadows, you will not be able to see things clearly, these conditions are likely to be retinal detachment.
-
The key symptoms of retinal detachment are: blurred vision, blurred vision, blurred deformation, sudden reduction of eye vision, etc., some will feel that there are layers of black clouds under the eyes like shadows, from the 1st level of the line of sight to ** to promote retinal detachment into early symptoms and later symptoms, the clinical precursor of retinal detachment may be the black shadow fluttering in front of the eyes, or accompanied by a sense of flash, if you do not pay attention in time, there will be a feeling like a black cloth in front of your eyes, and then the black cloth will gradually expand, In the later stage, the eyes will appear and all the eyes will be black cloth.
-
The general symptom is that the vision will decrease, followed by the capillaries will slowly rupture, and there may be some symptoms when the eye is moving. Sometimes it suddenly becomes invisible, like a black cloth. I always feel like there's something in front of me.
I am not in very good shape, and my physical condition is not particularly good. May lose appetite and have poor spirits.
-
First, the symptoms of retinal detachment at the beginning are not very obvious, and the patient will feel some flashes of light at the edge of the visual field that will change position as the eye moves. Second, some patients will develop floaters in the process of retinal detachment, mild patients will only have floaters in one eye, and third, severe patients can see floaters in both eyes. If the retina is detached suddenly, then the person will have nystagmus and there will be a sudden loss of vision.
-
Answer]: faction B shouts test-taking guidance].
The retina can be divided into two layers, the external revolt layer is the pigment epithelial layer, which is composed of a single layer of pigment epithelium; The inner layer is the neural layer; The inner and outer layers of the retina are easily separated, resulting in retinal detachment.
-
It can protect eyesight and prevent blindness, and then there are many nerve cells in the retina, which can protect the eyeball, and all the external light will be focused on the retina, and then it will form a signal, and then transmit it to the human body; There will be blurred vision, and then there will always be a floating object in the eye, and the flashing sensation will become stronger and stronger; In this case, you should go to a specialized hospital for corneal transplantation.
-
Nutritional photoreceptor cells, regeneration and repair.
Sudden appearance of many floating objects in front of your eyes, a sense of light flashing in one or both eyes, blurred vision, curtain-like shadows, etc.
If you have eye problems, go to the hospital for professional help in time.
-
The role of the retina is that it can be used to protect the nerves in the eye, and it can also be imaged, so that people can see things clearly, and the retina will detach the eyes will appear red, and there will also be signs that you can't see clearly.
-
The retina exists to protect the eyes. These symptoms are that the eyes will be very painful, the eyes will gradually blur, the eyes will be red, there will be a lot of red blood, and myopia will appear. Don't rub your eyes with your hands and try to avoid touching your eyeballs.
-
What is retinal detachment?
-
It is usually divided into two types: primary and secondary. Retinal detachment refers to a pathological state in which the neuroepithelial layer of the retina is separated from each other. In embryogenesis and histology, there is a latent gap between the retinal neuroepithelium and the pigment epithelium, and under normal conditions, through a series of physiological and biochemical mechanisms, the retinal neuroepithelium and the pigment epithelium adhere to each other, so as to ensure that the retina has normal physiological functions.
After retinal detachment, the retina will be atrophied and degenerated, and the visual function will be seriously damaged due to the damage to the nutrition of photoreceptor cells.
-
Omental detachment is usually divided into primary and secondary. Primary retinal detachment, also known as rhegmatogenous retinal detachment, the real cause is not very clear, such patients often have retinal degeneration, atrophy, thinning, or high myopia, vitreous liquefaction, detachment, concentration and adhesion with the retina due to some factors, in these abnormal cases, the eyeball.
-
There are three types of retinal detachment:
Retinal detachment is the separation of the neuroepithelial layer and the pigment epithelial layer, and there are three types of retinal detachment according to the speed and severity of the onset.
Retinal detachment is divided into three types: traction retinal detachment, rhegmatogenous retinal detachment, and exudative retinal detachment, and these three different types of retinal detachment are different.
Traction retinal detachment is like a gentle and lovely little girl, and the condition is not particularly serious. Traction retinal detachment is divided into external force traction and internal force traction, with external force traction mostly occurring in patients with high myopia and internal force traction occurring in patients with vitreous lesions.
Rhegmatogenous retinal detachment is a more severe form of retinal detachment because there is a tear in the retina, and the fluid enters the gap between the tear space to form retinal detachment. Rhegmatogenous retinal detachment is impatient and severe compared to the gentleness of traction retinal detachment, that is, the onset is acute and severe.
Exudative retinal detachment is a pigmented epithelial or choroidal lesion in which fluid accumulates under the neuroepithelial layer. Exudative retinal detachment is slow and persistent.
Retinal detachment can be done by surgery**, the surgical methods include external surgery and internal surgery, the success rate of external surgery is more than 90%, and the internal surgery is vitrectomy and retinal reduction.
-
If the net is off, you must hurry up the operation, the operation is done to keep the lying posture for several months, wait for the retina to reset before you can lie down and sleep, the process is very painful, if the operation is recommended to use the retinal detachment ** bracket, so that the process of lying on the stomach can relieve the pain, try not to use the pillow and eye rest, this kind is not a professional mesh detachment equipment, silicone or cotton pillow for a long time to sleep on the cervical spine and lumbar spine is prone to problems, There are too many fragmented parts of the eye rest to fix the face, and the bed is full of fragments after waking up, so you should choose the kind of strong cast iron.
-
Hello, there are still many ways to retinal detachment, drugs, surgery, if you use medicine, it is best to go to the hospital to check and see which medicine is suitable. For surgery, minimally invasive vitrextomy is currently the best option.
Traditional vilitures generally involve making a ring-sized (about 40 to 45 mm long) annular incision on the surface of the white eyeball, pulling four rectus muscles, suturing the contact lens fixation ring, and making three puncture incisions with a length of 1 mm in the inner layer of the eyeball to enter the vitreous cavity located in the middle of the eyeball and cut the diseased vitreous humor. Because the incisions are relatively large, sutures are required to close the incisions.
Minimally invasive virectomy uses a trocar to directly puncture the bulbar conjunctiva and sclera into the vitreous cavity, which can quickly establish the three channels required for surgery, and place temporary cannula on the channel, so that the puncture port of the conjunctiva and sclera is kept on the same line, and the perfusion tube and surgical instruments are in and out of the eyeball through the cannula, so as to avoid the damage to the eyeball caused by repeated entry and exit of surgical instruments.
-
Retinal detachment, also known as retinal detachment, is extremely rare in patients who can heal on their own, and for patients with simple retinal detachment (i.e., primary retinal detachment), surgery is generally required**, and its prognosis is mainly related to the following factors:
1. Time of retinal detachment. For patients with retinal detachment, the earlier the surgery, the higher the ** rate (the prognosis is poor for those who have been more than 9 months). )
2. The number, size and location of retinal tears. If there are many and large retinal tears, the closer to the back of the eye, the prognosis is poor.
3. Patients with macular detachment have poor vision and prognosis.
-
Our experts tell you:
For how to ** retinal detachment method:
The first is laser**, which can be used to seal the retinal tear to prevent retinal detachment from occurring. Under the operation of an experienced physician, the laser beam is aimed at the tear site, and a number of laser points are fired along the edge of the tear according to the specified laser energy, time and spot size, so as to enclose the tear and close it, just like electric welding.
The second surgical method, that is, vitrectomy and retinal reduction combined surgery, is suitable for some complex retinal detachment, which cannot be cured by general surgical methods alone, such cases have proliferative lesions, and the retina is pulled by vitreous adhesion and wrinkles are formed like wrinkled clothes. It is a modern surgery with a high degree of precision and technical requirements, which requires special equipment and post-operative care.
The third is traditional scleral cerclage or episcleral compression, or exposure surgery, which is suitable for general retinal detachment. In patients with old retinal detachment, even if the surgery is successful, the retina is reduced and vision cannot be restored.
-
Hello! At present, retinal detachment can choose episcleral cingulate with padding, or vitrectomy plus C3F8 filling or silicone oil filling according to the location of the detachment.
-
As long as the retina detachment occurs, it can only be treated by surgery at present, and the sooner the better, the less the detachment, the better the recovery, the main external surgery, extracorporeal cushion pressure condensation and cerclage condensation, internal surgery, glass resection and gas remedy, after surgery, later recovery is more important.
1.In terms of content--- it is divided into three parts: wind, elegance, and song. "Wind" means earthy wind, wind ballad. "Ya" is the sound of Ya music, divided into "big Ya" and "Xiao Ya". >>>More
Writing the scene) Lushan.
The stone path rushes into the ancient pavilion, and the birds sing in the depths of the forest. >>>More
Chinese ruins include: Longmen Grottoes, Mausoleum of Qin Shi Huang, Yungang Grottoes, Dazu Rock Carvings, the Great Wall of China, etc. >>>More
Poetry is a literary genre of lyrical speech. According to different classification criteria, it can be divided into many categories. It has the following four characteristics: >>>More
Transport packaging. Sales packaging.