What is Retinal Detachment? What Are Its Symptoms? How Is It Diagnosed and Treated?

Retinal detachment is a serious eye condition that occurs when the retina separates from the inner surface of the eyeball and can lead to permanent vision loss if left untreated. Symptoms of retinal detachment include flashes of light, decreased vision, floaters, and black spots. High myopia, advanced age, eye injuries, and family history are the primary risk factors. Therefore, early diagnosis and treatment play a critical role in saving your vision. In this article, we will examine in detail what retinal detachment is, its symptoms, and its diagnostic and treatment methods.

What Is Retinal Detachment?

Retinal detachment is the physical separation of the retinal layer located at the back of your eye from the underlying pigment epithelium layer. Normally, these two layers are firmly attached to each other. However, in some cases, this bond weakens or breaks.

From the moment the separation occurs, retinal cells are unable to receive the oxygen and nutrients they need. In this case, the cells begin to die within minutes and hours. Therefore, retinal detachment is a condition that requires emergency medical intervention.

Because the nourishment of your eye is disrupted, vision loss and nerve damage can become permanent if it is not treated quickly. For this reason, it is among the diseases that require urgent treatment.

The Role of the Retina in Eye Structure

The retina is a thin layer of nerve tissue that covers the inner surface of the eyeball. Located at the back of your eye, this structure contains millions of photoreceptor cells that detect light and transmit it to the brain. These photoreceptors are divided into two groups: cones and rods.

Photoreceptor cells convert incoming light into electrical signals. These signals are transmitted to the visual center in the brain via the optic nerve. The brain processes these signals, allowing you to perceive the image.

For the retina to function healthily, it must be firmly attached to the retinal pigment epithelium (RPE) layer beneath it. The RPE layer is responsible for the nourishment of the retina and the removal of its metabolic waste. The relationship between these two layers is essential for the retina to maintain its vitality.

The Process of Detachment Formation

The gel that fills the inside of your eye, called the vitreous, changes its structure with aging. Normally in a gel consistency, this substance liquefies and shrinks. The vitreous, whose structure has deteriorated, begins to separate from the retinal layer.

As the vitreous separates, it pulls on the retina where it is firmly attached. As a result of this physical strain, tears or holes may occur in the retina. A tear that forms is clinically a harbinger of an emergency.

Intraocular fluid begins to fill under the retina from the torn area. The leaking fluid separates the retinal layer from its place. This separation is similar to wallpaper that has been dampened separating from the wall. If a quick laser intervention is not performed, the situation turns into a full detachment.

What Are the Symptoms of Retinal Detachment?

Symptoms of retinal detachment mostly appear suddenly and require emergency intervention. In at least 50% of patients, sudden-onset complaints such as flashes of light, or seeing flies or spiders occur during the formation of posterior vitreous detachment and retinal tear. However, in 40% of patients, it develops without any symptoms and appears with vision field loss due to detachment. Recognizing the symptoms is vital for early diagnosis.

Flashes of Light

If you experience sudden and short-term sensations of brightness in your eye, this may indicate a retinal problem. Flashes of light are described as a camera flash or lightning. Just like a camera flash going off, you suddenly see a flash of light in your eye.

These flashes, which become more prominent especially in dark environments, are the most important sign that the vitreous gel is pulling on the retina. The flashing repeats irregularly in a certain part of your visual field for a long time. It can sometimes continue for a few days, a few weeks, or even months.

Flashes of light caused by mechanical stimulation of the retina carry a risk of retinal tear. Therefore, you should consult an ophthalmologist as soon as you notice this symptom. Your eye does not need to be exposed to any light; it is a spontaneous reaction.

Darkening in the Visual Field

Darkening of a part of your vision as if there is a curtain or shadow in front of it is associated with retinal detachment. Patients describe this situation as a black curtain descending, starting from one corner of the visual field and progressing towards the center.

The shadow sensation usually manifests itself as a darkening starting from top to bottom or from the edges. The black curtain, starting from the detached retinal area, gradually covers the entire eye, and when the center of the eye is involved, you become unable to see anything. You may experience blurred vision as if there is a curtain in a part of your eye.

Floaters and Black Spots

A sudden increase in the number of moving dots, lines, or spiderweb-like shapes in your visual field may be a harbinger of a pull or bleeding on the retina. Black or red flying spots are observed. This condition, also known as eye floaters, occurs in the form of black dots or spots moving in front of your eye.

The sudden onset of many objects flying around can indicate serious eye problems. Bleeding may develop inside the eye, and as a result of this bleeding, blood cells released into the vitreous fluid are perceived as shadows or spots flying in front of the eye. This image, described as a shower of soot, is one of the important symptoms of retinal tearing.

Sudden Vision Loss

The patient usually notices painless vision loss in one eye when waking up in the morning. Sudden vision loss is one of the most serious symptoms of retinal detachment. You may experience a decrease in vision, blurring, or loss of sharpness in central vision.

If flashes of light are accompanied by blurred vision or black spots, you should definitely consult an ophthalmologist. Situations such as darkening or loss of vision in any part of the field of vision may indicate different serious eye problems such as retinal tearing. Retinal detachment caused by untreated tears can lead to permanent vision loss.

Causes and Risk Factors for Retinal Detachment

Some people are at higher risk for retinal detachment. Various factors increase the likelihood of developing this disease. Knowing the risk factors allows you to take early precautions.

High Myopia

High myopia significantly increases the risk of retinal detachment in your eye. The risk increases in patients who usually have -5.0 diopters or more of myopia. In myopia of 6 diopters and above, the fact that the retina is thinner than normal increases the risk of tearing.

The progression of myopia is due to an increase in the axial length of the eye, and this situation paves the way for retinal disorders. As the eyeball elongates, the retina stretches and thins. In patients with high myopia, the probability of early posterior vitreous detachment and peripheral retinal degeneration is higher than in normal individuals. For this reason, highly myopic patients carry a high risk for retinal tear and detachment.

Eye Trauma and Injuries

Eye injury is seen four times more in men than in women and is frequently encountered at young ages. It usually occurs due to work accidents, sports-related accidents, household accidents, and motor vehicle accidents.

As a result of blunt eye trauma, irreversible conditions such as intraocular hemorrhage, retinal edema, and retinal detachment can occur. Due to sudden changes in the axial length of the eyeball, damage occurs in the connection areas between the vitreous and the retina. If the connection areas are stronger than the retina, it can tear the retina from its place at the moment of trauma, causing a tear.

Age Factor and Vitreous Changes

Advanced age is one of the most important risk factors for retinal detachment. Posterior vitreous detachment is seen in 66% of people over 65. This risk begins to increase after age 40.

Vitreous tissue begins to deteriorate and liquefy with age. This structure, which is normally in a gel consistency, gradually separates from the places where it is attached to the retina. The risk of occurrence increases especially after age 50 because the vitreous gel begins to shrink. As the vitreous gel shrinks, it can tear the retina in areas where it is firmly attached.

Genetic Predisposition

The risk increases in those with a family history of retinal detachment. Family history is an important factor. 10-20% of retinal detachments are bilateral. If retinal detachment has developed in one eye, there is a possibility that it may occur in the other eye as well.

Risks After Eye Surgeries

There is a risk of retinal detachment in patients who have undergone cataract surgery. Retinal detachment can develop with a frequency of 1% after cataract surgeries. The application of YAG laser capsulotomy increases the risk by causing traction and inflammation. In addition, intraocular injections and other eye interventions are also among the risk factors.

How Is Retinal Detachment Diagnosed?

To make an accurate diagnosis, your ophthalmologist will perform a detailed examination. The diagnostic process takes place with imaging methods and a comprehensive eye examination. When you notice symptoms of retinal detachment in your eye, you should immediately consult an eye specialist.

Eye Examination and Diagnostic Methods

During the examination, your doctor uses special drops to dilate your pupils. After the pupils are dilated, the inside of your eye is examined in detail with various lenses. This procedure allows every area of your retina to be seen.

Fundus examination is the most common method used in the initial diagnosis of retinal detachment. A retinal examination is performed with a special device called a biomicroscope. Your doctor examines the vitreous and retinal area over a wide field. Tears can appear oval, horseshoe-shaped, or crescent-shaped.

The torn and detached retina appears raised and white in color. It fluctuates freely with eye movements. In some cases, there may be bleeding inside the eye, which can make direct examination difficult. Therefore, imaging techniques come into play.

Imaging Techniques

Advanced technology imaging methods play a major role in answering the question of what is retinal detachment. Ultrasonography is used especially in cases such as cataracts or vitreous hemorrhage that prevent seeing the retina. B-scan ultrasonography evaluates whether the retina is detached.

Optical coherence tomography examines the layers of the retina in detail. This technology determines the location and size of the tears. It can also show the anatomy of the retina at the histological level. Fundus photography records lesions with wide-angle images.

Apart from this, fluorescein angiography detects vascular problems and leaks. The vascular structures of the retina are examined by injecting dye intravenously. Each method provides different information, and when used together, a complete diagnosis can be made.

The Importance of Early Diagnosis

Early diagnosis and treatment are critical in saving your vision. If it can be treated before the retinal layer separates, vision loss is prevented. This is of great importance for reducing the need for surgery.

If retinal detachment is detected in the early period and surgical intervention is performed, vision can be completely saved. However, if it is delayed, it can result in permanent blindness. Every moment that passes for the retina directly affects the health of the visual cells.

It is very important to consult an ophthalmologist immediately when sudden vision changes are noticed. People with high myopia and those who have suffered trauma should have regular check-ups. Thanks to early diagnosis, the disease can be brought under control with less aggressive treatments.

How Is Retinal Detachment Treated?

Treatment options are determined according to the extent of the damage to the retina, the location of the tear, and the general condition of the eye. If tears are detected before detachment develops, they can be intervened with simple methods. However, if full detachment has occurred, surgical intervention becomes mandatory.

Laser Treatment (Argon Laser)

Argon laser falls into the field of preventive treatments in the treatment of retinal detachment. If fluid has not passed under the retina and there is only a tear, a laser is applied. It is a very easy procedure performed in an outpatient clinic setting.

Laser treatment attaches the holes in the retina or areas with a high probability of tearing to the pigment epithelium. Controlled scar tissue is created around the tear with small laser shots. This procedure prevents the tear from expanding and stops the development of retinal detachment.

Before the treatment, your pupil is dilated with drops, and anesthetic drops are instilled into your eye. You may see bright flashes of light during the procedure. Each session lasts an average of 10-15 minutes. You do not need to stay in the hospital.

Vitrectomy Surgery

Vitrectomy is the most commonly used method in the treatment of retinal detachment today. The surgery is performed under general anesthesia. The eye is entered through millimetric incisions from the white part of the eye.

The vitreous gel is cleaned with high-speed cutters. The fluid accumulated under the retina is aspirated, and the retina is placed back in its place. The tears are closed with a laser. At the end of the surgery, gas or silicone oil is placed inside the eye.

Vitrectomy surgery takes an average of 1-2 hours. The success rate in surgeries performed in the early period is 90-95%. Post-operative recovery lasts for 6 months. If silicone oil is used, a second surgery is required to remove it after 2-3 months.

Scleral Buckling Method

Scleral buckling is performed by placing a silicone piece on the outer wall of the eye. Pressure is applied from the outside to correspond to the area where the retinal tear is located. In this way, the tear is closed, and the fluid under the retina is absorbed by the eye.

The success rate varies between 68% and 100%. Since the inside of the eye is not entered, intraocular structures are protected. However, changes in eyeglass prescriptions are common after surgery.

Pneumatic Retinopexy

Pneumatic retinopexy is a minimally invasive method applied by injecting gas into the eye. The gas bubble pushes the retina towards the eye wall and ensures the closure of the tear.

The success rate is between 61% and 90%. The gas used disappears on its own between 15 days and 2 months. The patient must remain in the head position recommended by the doctor. This method is not suitable for patients who cannot maintain the position.

Post-Operative Recovery Process

The average recovery time is 2 months. Returning to work life is possible after approximately 15 days. Patients should not rub their eyes and should avoid trauma.

Prescribed eye drops should be used regularly. If gas or silicone has been placed inside the eye, it is mandatory to comply with a specific head position. Regular doctor check-ups are vital.

Frequently Asked Questions

Patients ask many questions about retinal detachment. The answers to these questions help you understand the treatment process.

Is Retinal Detachment an Emergency?

Yes, retinal detachment is an emergency and must be treated as soon as possible. If treatment is delayed, the risk of permanent vision loss increases. It is essential to consult an eye specialist as soon as you notice the symptoms.

Retinal detachment or suspicion of it requires a retinal examination by an eye specialist as soon as possible by dilating the pupil. Even minutes are important. This disease, which seriously threatens vision, leads to partial or total loss of vision if not treated urgently.

Does Vision Completely Improve After Treatment?

The level of vision after treatment depends on the severity of the damage and the timing of the intervention. In cases treated with early diagnosis, vision loss can be at a minimum level. However, in advanced cases, it may not return to its former state completely.

Within 15 days after surgery, you will experience an improvement to the level where you can return to work. Regaining full vision may take one or two months. Success depends on the size and duration of the detachment.

Can Retinal Detachment Recur?

Yes, retinal detachment can recur even after treatment. Especially if underlying causes such as myopia and diabetes continue, it should be followed up with regular check-ups. The desired success in surgery may sometimes not be achieved.

The onset of flashes of light or curtain-like vision in any part of the operated eye may indicate a recurrence. Sometimes there may be blurred vision. In these cases, consult your doctor before your check-up time comes.

Which Activities Should Be Avoided?

During the pre- and post-operative process, actions such as heavy physical activities, lifting weights, diving, being in high-altitude areas, and frequent bending of the head should be avoided. Do not get water in your eye for at least a week after surgery.

Cigarette smoke causes narrowing of retinal vessels, so you should neither smoke nor stay in environments where it is smoked. If gas is injected into the eye during surgery, a downward-looking position should be applied for the duration given by the doctor. Driving will be problematic during this period.

Can Retinal Detachment Be Prevented?

Those in the risk group (myopia, family history, and diabetes) should not neglect regular eye check-ups. You should protect your eyes from impacts and keep your systemic diseases such as diabetes and hypertension under control. Especially those with high myopia should have regular eye examinations.

In Summary, Retinal Detachment

Retinal detachment poses a serious threat to your eye, but it can be treated with early intervention. It is vital to consult an ophthalmologist as soon as you notice symptoms such as flashes of light, floaters, or darkening in your vision. Especially if you are in the risk group, you should not skip your regular eye check-ups.

Treatment options vary as laser, surgery, or gas injection. You can determine the most appropriate method for your situation with your doctor. Carefully following the instructions given after surgery will speed up your recovery process. As a result, to protect the health of your eye, be vigilant against symptoms and do not neglect regular check-ups.

Retinal detachment manifests with symptoms such as flashes of light, floaters, and sudden vision loss. Early diagnosis and treatment are critical in preventing vision loss.