Posterior Vitreous Detachment

  • Posterior vitreous detachment

The inside of the eyeball, on behalf of “vitreous”

It is filled with a transparent gel-liquid called . Often, with advancing age, the vitreous fluid loses its gel-like consistency and shrinks. With this contraction, the vitreous separates from the posterior wall of the eye. This separation event is called “posterior vitreous detachment”.

In addition to advancing age, posterior vitreous detachment may occur earlier, after eye blows, high degree of myopia, some familial hereditary diseases, and previous eye surgeries.

  • What are the symptoms of posterior vitreous detachment?

Posterior vitreous detachment can give the following symptoms:

– Floaters, particles, spider webs, especially noticeable when looking at white, shiny floors

– Flashes of light (visible with eye open or closed)

Floaters in posterior vitreous detachment and retinal retraction causing flashes of light

Posterior vitreous detachment is not the same thing as retinal detachment, which is caused by a tear in the eye and requires treatment. However, the risk of tear formation and retinal detachment increases slightly during the formation of posterior vitreous detachment and especially in the first 12 months after it occurs. Therefore, a patient with signs of posterior vitreous detachment should undergo a retinal examination.

If retinal detachment has occurred, it may result in vision loss if not treated within a short period of time. Therefore, it is important to know the symptoms of retinal detachment as well. These symptoms are:

  • Flashes of light felt when the eye is open or closed (as in posterior vitreous detachment)
  • Sudden appearance of more flying objects
  • Grey-black curtain developing from any direction within the visual field
  • Blurring or loss of vision that does not go away with a blink

If one or more of the above symptoms are present, a retinal examination should be performed without delay.

In retinal detachment, intraocular fluid leaks between the retina and the eye wall through the retinal tear.

  • RETINA DETACHMENT

As a result of the shrinkage of the vitreous fluid that fills the inside of the eyeball, this gel-like fluid is separated from the posterior wall of the eyeball. This condition is called posterior vitreous detachment. During the formation of posterior vitreous detachment, a tear may occur in the nerve layer called retina in some cases. The symptoms of a retinal tear are almost the same as the posterior vitreous detachment mentioned in the previous section. After the retinal tear occurs, the intraocular fluid passes between the retina and the wall beneath it, and “retinal detachment”

It causes the disease called .

  • What are the Symptoms of Retinal Detachment?

Retinal detachment is an urgent disease that can result in loss of vision. That’s why symptoms are important.

These symptoms are:

  1. Flashes of light felt when the eye is open or closed (as in posterior vitreous detachment)
  2. Sudden appearance of more flying objects
  3. Grey-black curtain developing from any direction within the visual field
  4. Blurring or loss of vision that does not go away with a blink

If one or more of the above symptoms are present, a retinal examination should be performed without delay.

Examination of the retina for tear in methods called indirect ophthalmoscopy

What is the Treatment of Retinal Tear?

Early detection of retinal tear and detection and treatment of retinal detachment before it develops are extremely important. Symptoms of a retinal tear are flashes of light and floating objects. If these symptoms are present, a retinal examination should be performed as soon as possible.

If a retinal tear is detected during the examination and it is suspected that this tear may cause retinal detachment, it should be treated. In the treatment, the tear is closed with laser.

Treatment of retinal tear with laser

What is Retinal Detachment Treatment?

If retinal detachment has developed, surgical intervention is required. The surgical method may vary depending on the number, size, location, shape of the retinal tear causing the retinal detachment and the duration of the retinal detachment.

– External buckling method (scleral buckling method):

It is the oldest method used in detachment surgery. A piece of hard silicone is placed on the outer wall of the eyeball to coincide with the retinal tear area, and a buckling is applied, and the retinal tear is closed with this application from the outside. If the retinal tear is closed with this external intervention, the retinal detachment fluid (fluid accumulating under the retina) is absorbed by the eye in a short time and the healing is completed.

Closure of retinal tear with scleral buckling method

– Vitrectomy:

If the tears that cause retinal detachment are numerous, large, their locations are different from the usual ones, the tear cannot be detected, there are other accompanying diseases (such as intraocular hemorrhage), or if time has passed, vitrectomy surgery may be required. In vitrectomy surgery, retinal detachment is intervened from inside the eye. For this, small holes are made in the eyeball, vitreous fluid is cleaned with the help of some cutting and aspirating rods (probes) and light sources, the fluid accumulated under the retina is aspirated, the tears are closed, and laser treatment is applied. At the end of the operation, it is necessary to apply a buffer material into the eye so that the laser treatment applied to the torn area adheres and this effect continues. Depending on the situation, this buffer can be air and similar gases, or silicone oil. After the operation, the patient should use protective eye drops for a while and lie in a certain head position.

Treatment of retinal detachment with vitrectomy method

Who Should Have a Retinal Examination for the Risk of Retinal Tear and Retinal Detachment?

People with flashes of light and sudden flying objects in their eyes should definitely be examined for retinal tears. Especially those with high myopia, people who have had a blow to their eye, those who have had eye surgery such as cataract surgery, those who have a family history of laser treatment or retinal surgery due to retinal tear, those who have a history of laser treatment or retinal surgery due to retinal tear in the other eye, and those who have a history of laser treatment or retinal surgery. should take the complaints of floaters seriously and must undergo a retinal examination as soon as possible.

EK İŞLER VE YURT DIŞI İLE İLGİLİ İLANLAR İÇİN MUTLAKA UĞRAYIN

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