Retinal Detachment: Guide to Restoring Excellent Vision

Retinal detachment is an eye condition requiring emergency care, accompanied by sudden vision loss, in which the retina separates from the back wall of the eyeball. The retina is a light-sensitive layer located at the back of the eye that detects and transmits visual information to the brain, making it essential for the process of vision. Early recognition of the symptoms of retinal detachment and timely intervention are crucial, because if the retina separates from its normal anatomical position, it can lead to permanent damage and even complete vision loss. In this detailed guide, we describe the symptoms, types, causes, and diagnostic and treatment options for retinal detachment.

The back wall of the eyeball consists of three main layers: the outer layer is the sclera, on which the choroid is located, and the innermost layer is the retina. The retina is a very thin tissue composed of ten different layers, each of which plays a critical role in the complex process of detecting and transmitting vision. The cells of the retina are highly sensitive and quickly become damaged if, for any reason, they cannot function properly. Moreover, the most important cells in the visual process are incapable of regeneration, so if they die, there is no way to repair or replace them.

Different areas of the retina serve different roles in vision: the central part is the macula, which is responsible for sharp vision, while the peripheral part provides our visual field.

What Is Retinal Detachment?

Retinal detachment refers to when the retina separates from its normal position (the nine inner layers of the retina separate from the tenth layer, called the retinal pigment epithelium), thereby interrupting its oxygen and nutrient supply, causing rapid damage and cessation of the visual process. There are several subtypes of retinal detachment, but when we do not specifically mention which one we are discussing, we generally refer to detachment associated with a retinal tear.

What Are the Symptoms of Retinal Detachment?

Retinal detachment is often accompanied by suddenly occurring symptoms that indicate the need for immediate ophthalmological examination. These may appear individually or simultaneously, and the presence of just one symptom almost certainly indicates that the retina has detached. The other symptoms may suggest a retinal tear, but also other ophthalmological conditions that may not necessarily require treatment, such as posterior vitreous detachment.

⚡Flashes of Light: Suddenly occurring, frequently appearing, flickering, darting light phenomena that run lightning-like across the edge of the visual field may indicate that a part of the retina is being pulled by the vitreous. In such cases, a retinal tear may or may not be present, but this cannot be determined based solely on this symptom.

⚡Cessation of Flashes of Light: It is equally important that previously existing flashes of light suddenly stop as it is that they are present. This indicates that the vitreous has separated from the retina that was previously pulling it. In this case, there may or may not be a retinal tear, which is why a repeat ophthalmological examination is recommended.

⚡Floating Spots Before the Eyes: During the transformation of the vitreous gel and during posterior vitreous detachment, opacities appear in this gel-like material that obstruct the path of light and cast shadows on the retina. These floating spots are called vitreous floaters, which can cause these symptoms.
However, such floating, small black spots can also develop during a retinal tear, caused by tiny pigment granules released from the pigment epithelium layer at the site of the tear or bleeding from the torn retina. If we suddenly see newly formed floating spots in the visual field, an ophthalmological examination is definitely recommended, especially if they are present in large numbers.

⚡Curtain-Like Shadow or Darkness: One of the most alarming symptoms is when a dark shadow (a “wall” or “curtain”) develops in a peripheral part of the visual field. This shadow can gradually increase and spread to the central area, causing vision loss. A dark, curtain-like shadow through which vision is significantly worse most likely indicates retinal detachment.

⚡Blurred Vision, Vision Loss: If the retinal detachment extends beyond the peripheral areas to reach the central part, sharp vision suddenly and significantly deteriorates, with only the perception of shadows remaining in the area corresponding to the detached retina. However, central vision loss can have many other causes.

The occurrence of any of the above symptoms requires immediate ophthalmological examination, because timely intervention is critically important for saving vision.

Types of Retinal Detachment

Retinal detachment can be divided into three main types, each with its own mechanism of development, risk factors, and treatment strategy:

1. Rhegmatogenous (Tear-Induced) Retinal Detachment

This is the most common type, in which a tear in the retina allows part of the gel-like fluid (vitreous) filling the inside of the eyeball to enter between the tissues, thereby separating the retina.

The first step in the process is a retinal tear, the development of which often coincides with the process of posterior vitreous detachment. At this time, part of the vitreous gel liquefies, resulting in the material that was previously pressed against the back wall of the eyeball collapsing, creating a more jelly-like part that shrinks toward the front of the eye and a more liquid part located further back.

Retinal tears develop in 5–14% of patients who have undergone posterior vitreous detachment, and in nearly half of these cases, retinal detachment develops. Thanks to modern treatment options, timely care results in a high success rate.

2. Tractional (Traction-Induced) Retinal Detachment

A classic example is retinal detachment that develops in diabetic retinopathy. In the stage called proliferative retinopathy, fibrovascular membranes containing vessels form inside the eyeball and on the surface of the retina, which exert such significant traction during their scarring that the retina mechanically detaches from the underlying layers. This is a slower process than the previous type, so the timing of surgery can generally be better planned, but due to unpredictable scarring, extensive retinal damage and repeated detachments are common, and the success rate is also lower.

3. Exudative (Fluid-Induced) Retinal Detachment

In this case, fluid accumulation causes retinal detachment without a tear or traction. The process may be inflammatory, infectious, or tumor-related. This type of detachment is much rarer but can also cause severe vision impairment. Treatment for this type is usually not surgical.

Based on the above, we can see that accurate diagnosis is very important in selecting the appropriate treatment.

Causes and Risk Factors for Retinal Detachment

The development of retinal detachment is facilitated by numerous factors, the most important of which are the following:

🔸 Age: During the aging process, the structure of the eye changes and the risk of tear formation increases. A higher incidence is particularly observed in individuals over 60 years of age.

🔸 High Myopia: In such eyes, the retina may be thinner and less resistant, making it easier for tears to form. In some cases or before certain procedures, prophylactic laser treatment of the peripheral retina is already necessary.

🔸 Eye Trauma: Any mechanical injury to the eye can result in retinal tear and/or retinal detachment. After eye injuries, thorough and regular examination is particularly important during the first 4–6 months.

🔸 Eye Surgery, Laser Treatments: Retinal detachment can develop after almost any uncomplicated ophthalmological procedure, but fortunately, the rate of these occurrences is very low.

🔸 Systemic Diseases: There are several systemic conditions in which the risk of retinal detachment is increased. These include:

• Diabetes
• Immunological diseases
• Hematological diseases

🔸 Genetic Factors: Family predisposition can also play a role in retinal detachment, and in certain genetic diseases, the incidence is also higher.

How Is Retinal Detachment Diagnosed?

Diagnosing retinal detachment involves several complementary examination methods:

🩺 Ophthalmological Examination with Pupil Dilation

After dilating the pupil with eye drops, the ophthalmologist uses a slit lamp and special lenses to thoroughly examine the condition of the retina, mapping any tears, breaks, holes, or other pathological changes and determining the extent of any retinal detachment.

🩺 Optical Coherence Tomography (OCT)

OCT is a modern, three-dimensional imaging procedure that allows detailed layer-by-layer mapping of the retina. This advanced retinal examination method helps determine the extent of retinal detachment affecting the central area of sharp vision, which greatly influences the surgical plan and its timing. If the retinal detachment does not yet affect the very center of sharp vision, surgery is recommended within 24 hours, but no later than 3 days. If the area of sharp vision has also detached, it is still advisable to perform the surgery as soon as possible, but in this case, treatment within 1 week is also acceptable.

🩺 Ophthalmic Ultrasound Examination

In some cases of retinal tear, vitreous hemorrhage is also present, which prevents us from examining the condition of the retina using conventional light-based examination methods. In such cases, ultrasound examination is very helpful, allowing precise determination of whether or not retinal detachment is present. In addition, specialized ophthalmic ultrasound examination is also suitable for assessing the extent of posterior vitreous detachment, mapping any pathological vitreous adhesions and traction, and identifying certain retinal tears.

These diagnostic methods, individually or combined as needed, enable the specialist to identify the exact type and extent of retinal detachment, which also plays an important role in establishing the appropriate surgical plan.

What Are the Treatment Options for Retinal Detachment?

Treatment strategies for retinal detachment depend on the type, severity of the detachment, and the individual characteristics of the patient. The following methods are the most common:

1. Retinal Tear Laser Treatment (Laser Retinopexy)* ✨

The purpose of laser treatment is to induce localized scarring on the retina. This method is primarily used in cases of retinal tear and at most minor retinal detachment.

Laser treatment has several advantages, the most important of which is that it is an immediately available, outpatient procedure requiring only a few drops of local anesthetic as preparation. Retinal laser treatment is a very precise procedure: with one shot, we affect at most half a millimeter, and by repeating this many times, we seal around the diseased retinal area.

The scarring formed after laser treatment welds the retina to its base, thereby preventing further spread of the process. The procedure carries low risk and is usually successful, making this method the primary recommendation for treating retinal tears. Most often, one treatment is sufficient to secure the area, but multiple interventions may be necessary, especially if bleeding is also associated with the tear. It is also a preferred procedure during retinal surgery.

After laser treatment, initial scarring forms within 1–3 days, which usually becomes sufficiently strong after 1 week; however, the treated, scarred area continues to undergo transformation for at least 3 weeks, during which time the eye must be protected. Healing is generally considered complete after 6 weeks, and during this time, eye protection is particularly important.

During the first week, all physical work involving physical exertion is strictly prohibited, and avoiding flying and diving is also advisable. In the following month, you can gradually return to your usual lifestyle, but during this period, activities involving significant, intense exertion should also be avoided. Similarly, sports where there is a higher risk of impact or injury to the eye should also be avoided.

* treatment available at our clinic

2. Cryotherapy (Cryotherapy)

During cryotherapy, a specific area of the retina is briefly frozen with a small device, resulting in retinal scarring and thereby stabilization of the tear. Similar to laser treatment, it is used for treating retinal tears or smaller retinal detachments, but much less frequently, as it is a less precise procedure and the rate of complications is also higher. It requires injection anesthesia, because freezing the tissues causes immediate cell death, which produces significant pain.

Retinal cryotherapy is mainly used in cases of extensive or injury-related retinal tears or in combination with other procedures (gas injection, retinal surgery); it is now rarely performed alone.

3. Pneumatic Retinopexy (Pneumatic Retinopexy)

During this procedure, a special gas is injected into the eye, which then exerts appropriate pressure on the retina in the form of a bubble and presses out the fluid beneath it, so the retina returns to its normal position. This method is used for small or moderate retinal detachment, which is usually supplemented with laser or cryotherapy treatment. It is a procedure performed in hospital settings, with the limitation that it can only be used if the retinal detachment affects the upper parts of the eye.

4. Vitrectomy (Vitrectomy)

The surgery called vitrectomy is currently one of the most important pillars of retinal detachment treatment. In cases of extensive or old retinal detachment, only this surgical procedure can restore the anatomical state of the retina, but it is also a preferred treatment method for any other retinal detachment.

During vitrectomy, three small incisions are made in the eyeball, through which the vitreous gel is removed, the fluid that has entered under the retina is aspirated, the retina is repositioned on its base, and finally the tear is sealed with laser treatment or cryotherapy.

At the end of the surgery, fluid or gas is placed in the vitreous space, which the eye later replaces with its own produced fluid. In more severe cases, however, in order to keep the retina stably in place during the scarring period lasting several weeks, the vitreous space must be filled with a special silicone oil. Later, the oil must be removed in a repeat surgery, which usually takes place after 2 months.

Rarely, the oil remains for many years, for example, in cases of repeated or old retinal detachment or severe retinal detachment caused by diabetes. Vision through the gas introduced during surgery is very poor, but this lasts only a short time, as it is continuously absorbed from the eye. In contrast, vision through silicone oil is somewhat better (but still at most about 30%), but vision will remain limited until it is removed.

In the case of gas filling, it is very important in the first days to strictly maintain the head positioning depending on the location of the tear so that the gas keeps pressing the retina until initial scar tissue forms, otherwise the retina may detach again. In the case of silicone oil, there is no such positioning requirement, but this solution has other disadvantages.

5. Scleral Buckling (Scleral Buckling)

In the era before vitrectomy, retinal detachment was treated with so-called scleral buckling surgery. Despite modern procedures, its validity still exists in certain cases today. During the surgery, a circular silicone band or a smaller sponge-like material is sutured to a localized area on the wall of the eyeball. This causes the wall of the eyeball to indent toward the vitreous, so the detached retinal part reattaches, and in the area of the retinal tear, scarring is induced by cryotherapy, thereby ensuring that the retina does not detach again.

In young people and for certain types of retinal detachment, scleral buckling surgery has clear advantages over vitrectomy, but unfortunately also disadvantages. Nowadays, the number of surgeons performing such surgery is unfortunately decreasing, so the availability of treatment is also limited.

For both vitrectomy and scleral buckling surgery, the most important thing is that the surgery succeeds the first time and the retina reattaches, because repeated detachments and treatments worsen the final outcome and increase complications.

The treatment plan must be developed on a personalized basis, taking into account the type of retinal detachment, the risks associated with the specific case, and the patient’s overall health status.

Follow-Up Care and Recovery

After treatment for retinal detachment, proper follow-up care is essential. The following play a key role in post-surgical recovery:

🔹Regular Follow-Up Examinations: In the post-surgical period, it must be repeatedly checked whether the retina has properly reattached, and any complications must be identified and treated in a timely manner.

🔹Medication: To support the healing of the eye, anti-inflammatory, intraocular pressure-lowering, and antibiotic eye drops are often used.

🔹Temporary Lifestyle Changes: In the post-surgical period, excessive physical exertion, impact or injury to the eye, and sudden movements should be avoided in order to keep the retina in place and prevent re-injury during the delicate healing period. Proper nutrition and rest also contribute to rapid recovery.

The prognosis for post-surgical vision improvement depends greatly on the timely recognition of retinal detachment and appropriate, timely intervention. Early diagnosis and immediate treatment measures greatly increase the likelihood that after surgery the patient will preserve or regain a large part of their vision and avoid further complications.

Prevention and Awareness

Prevention of retinal detachment is not always possible, but the following measures can help reduce risks:

🔹Regular Ophthalmological Examination: Regardless of age, periodic eye examinations allow early detection of pathological changes developing in the peripheral parts of the retina. If someone is aware of these, they can more easily detect warning symptoms and respond appropriately more quickly. Regular monitoring is especially essential for older people, those with high myopia, or diabetics.

🔹Protection Against Trauma: If a sports activity or work environment carries the risk of eye injury, wearing appropriate protective eyewear is essential. Whether the risk of injury exists due to high-speed objects (e.g., balls), chemicals, sharp tools, or other hazards, protective eyewear helps prevent serious damage.

🔹Healthy Lifestyle: Healthy nutrition and regular physical activity also contribute to maintaining overall ophthalmological health.

🔹Awareness: It is important for patients and their family members to recognize the signs of retinal detachment and immediately consult a specialist if they experience any problems.

ℹ️Expert Treatment: Dr. Róbert Gergely is one of the most experienced retinal specialists internationally, who has been performing an outstanding number of retinal tear laser treatments for more than 15 years.