Retinal Detachment: Symptoms, Treatment, and Recovery
Understanding Retinal Detachment
The retina is a paper-thin layer of nerve cells at the back of the eye. It captures light and converts it into electrical signals that travel through the optic nerve to the brain, where they become the images you see. When the retina detaches, it can no longer send clear signals to the brain. The longer the retina remains detached, the greater the risk of lasting vision damage.
There are three main types of retinal detachment, each with a different cause.
- Rhegmatogenous retinal detachment is the most common type. It occurs when a hole or tear in the retina allows the gel-like fluid inside the eye, called the vitreous, to seep underneath and separate the retina from the tissue below.
- Tractional retinal detachment happens when scar tissue on the retina contracts and pulls the retina away from the back of the eye. This type is often seen in advanced diabetic eye disease.
- Exudative retinal detachment occurs when fluid builds up beneath the retina without any tears or holes. Inflammatory conditions, tumors, or blood vessel abnormalities can cause this type.
Inside the eye, a clear gel called the vitreous fills the space between the lens and the retina. At birth, the vitreous is firmly attached to the retina. As you age, the vitreous naturally shrinks and separates from the retina in a process called posterior vitreous detachment (PVD). In most people, this separation happens without problems. However, if the vitreous pulls too strongly on an area where it is firmly attached, it can tear the retina. Vitreous fluid then flows through the tear and collects underneath, lifting the retina away from its blood supply.
Proliferative vitreoretinopathy, or PVR, is a condition where scar tissue forms on the surface of the retina after a detachment or surgery. This scar tissue can contract and pull the retina, creating new tears or preventing the retina from lying flat after repair. PVR occurs in approximately 5 to 10 percent of all retinal detachments and is the most common reason retinal detachment surgery does not succeed on the first attempt (AAO).
Who Is Affected and Risk Factors
The annual incidence of rhegmatogenous retinal detachment is approximately 1 in 10,000 people (AAO). While that may sound rare, certain groups face a much higher risk. Retinal detachment can occur at any age but becomes more common after age 40.
People with high myopia (severe nearsightedness) are at significantly greater risk. In highly myopic eyes that have not had cataract surgery, the rate of retinal detachment is 39 times higher than in non-myopic eyes, at 868.83 per 100,000 person-years compared to 22.44 per 100,000 person-years (Scientific Reports, 2023). This increased risk occurs because myopic eyes are longer than average, which stretches and thins the retina, making it more vulnerable to tears.
Cataract surgery is a known risk factor for retinal detachment. According to IRIS Registry data, 0.21 percent of eyes develop retinal detachment within one year after cataract surgery (Ophthalmology Science, 2023). Complications during cataract surgery can further raise this risk. Severe eye injuries, especially blunt trauma from sports or accidents, can also cause retinal tears or detachments.
Lattice degeneration is a condition in which the peripheral retina becomes thin and develops small holes or weak spots. It is found in 6 to 8 percent of the general population but in about 33 percent of myopic eyes (AAO). Lattice degeneration is present in 20 to 30 percent of retinal detachment cases (AAO). A recent IRIS Registry analysis identified lattice degeneration as the strongest risk factor for retinal detachment after cataract surgery, with a 10.53-fold increased risk (Ophthalmology Science, 2023). Other conditions such as retinoschisis, a splitting of the retinal layers, can also increase risk.
If you have had a retinal detachment in one eye, the other eye is at higher risk. A family history of retinal detachment also raises your likelihood. If either applies to you, regular dilated eye exams with a retina specialist are important for early detection of retinal tears or thinning.
Signs and Symptoms
Retinal detachment is a medical emergency. If you experience any of the following symptoms, see a retina specialist or go to the emergency room immediately.
- A sudden increase in floaters, which are small dark spots, threads, or specks that drift across your vision. Some people describe it as someone shaking pepper in their field of view.
- Flashes of light, especially at the edges of your vision. These flashes, called photopsia, often occur when the vitreous tugs on the retina.
- A shadow or dark curtain spreading across part of your vision, often starting from the side and moving toward the center.
- A sudden, noticeable decrease in vision clarity in one eye.
Retinal tears may initially cause floaters and flashes without any loss of vision. If fluid begins to collect under the retina, a shadow or curtain effect may appear in the peripheral vision. This shadow can remain stable or progress toward the center of vision over hours to days. When the central retina, called the macula, becomes detached, central vision is affected. The speed at which symptoms progress varies, but any new floaters or flashes should be evaluated urgently to catch a tear before it becomes a full detachment.
In some cases, small retinal tears or slow detachments in the far periphery may produce few or no noticeable symptoms. This is one reason routine dilated eye exams are important, especially for people with risk factors such as high myopia, lattice degeneration, or a history of eye surgery. Early detection of a retinal tear before detachment occurs allows for less invasive treatment.
Diagnosis and Testing
A retina specialist will begin with a dilated eye exam. Special eye drops widen the pupil, allowing the doctor to see the retina in detail using a bright light and magnifying lenses. The specialist carefully examines the entire retina, including the far edges, to check for tears, holes, thinning, or areas of detachment.
If blood or other debris inside the eye blocks the view of the retina, the specialist may use an ultrasound to create images of the retina. This painless test uses sound waves to show whether the retina is attached or detached. Optical coherence tomography (OCT), a scan that creates detailed cross-sectional images of the retina, may also be used to assess the macula and guide treatment decisions.
Timing matters in retinal detachment. A retinal tear without detachment can often be treated in the office with a laser or freezing procedure to prevent progression. Once the retina has detached, surgery is needed. If the macula has not yet detached, repair is typically performed within 24 to 48 hours. If the macula is already detached, surgery is still necessary but may be scheduled within a few days. In either case, prompt evaluation by a retina specialist is critical.
Treatment Options
When a retinal tear is found before the retina has detached, a retina specialist can often seal it in the office. Laser photocoagulation uses a focused beam of light to create small burns around the tear. These burns form scar tissue that bonds the retina to the underlying tissue, preventing fluid from passing through. Cryopexy uses a freezing probe applied to the outside of the eye to achieve a similar seal. Both procedures are performed in the office and can prevent a tear from progressing to a full detachment.
Pneumatic retinopexy is a procedure in which the retina specialist injects a small gas bubble into the vitreous cavity of the eye. The bubble floats upward and presses against the retinal tear, pushing the retina back into place. The patient must maintain a specific head position for several days to keep the bubble over the tear while it heals. Laser or cryopexy is applied to permanently seal the tear. This procedure is best suited for detachments caused by tears in the upper portion of the retina.
A scleral buckle is a small band of silicone that a retina specialist places around the outside of the eye. The buckle gently pushes the wall of the eye inward toward the detached retina, helping it reattach. Cryopexy or laser is used to seal the retinal tear. The buckle remains on the eye permanently in most cases but is not visible. This approach is often used in younger patients or in certain types of detachments.
Vitrectomy is a surgical procedure in which the retina specialist removes the vitreous gel from inside the eye through very small incisions. Removing the vitreous eliminates any traction pulling on the retina and allows the surgeon to directly repair tears and reattach the retina. A gas bubble or silicone oil is placed inside the eye to hold the retina in position while it heals. Gas bubbles gradually dissolve on their own over weeks. Silicone oil may need to be removed in a separate procedure months later. Vitrectomy is the most common surgical approach for retinal detachment.
In some cases, a retina specialist may combine a vitrectomy with a scleral buckle for complex detachments or when PVR is present. For very complex cases involving PVR or giant retinal tears, long-acting gas bubbles or silicone oil are commonly used to support the retina during healing. Research is ongoing to find medications that can prevent or treat PVR, but no medical therapy has proven effective for most patients to date.
What to Expect
Most retinal detachment surgeries are performed on an urgent basis. Your retina specialist will explain which procedure is recommended for your specific type of detachment. You will receive instructions about eating, drinking, and medications before surgery. The procedure is typically performed under local anesthesia, meaning you will be awake but your eye will be numbed so you do not feel pain.
Recovery varies depending on the type of procedure. After pneumatic retinopexy, you will need to hold your head in a specific position for several days to a few weeks. After vitrectomy with a gas bubble, you may need to maintain face-down positioning for a period of time as directed by your retina specialist. You should not fly in an airplane or travel to high altitudes while a gas bubble is in the eye, as pressure changes can cause dangerous increases in eye pressure. Your retina specialist will tell you when it is safe to resume normal activities.
How much vision recovers depends on several factors, including whether the macula was detached and how long the detachment lasted before repair. If the macula remained attached, vision outcomes are generally better. If the macula was detached, some degree of vision improvement is possible, but full recovery to pre-detachment levels is not certain. Vision may continue to improve gradually over weeks to months after surgery. Treatment is successful in reattaching the retina in about 9 out of 10 people (AAO), though some patients require more than one surgery.
As with any surgery, retinal detachment repair carries some risks. These can include increased eye pressure, bleeding inside the eye, infection, cataract development, and recurrent detachment. PVR is the most common cause of surgical failure. Your retina specialist will monitor you closely after surgery and address any complications promptly.
Living With Retinal Detachment
If you have had a retinal detachment in one eye, the other eye has a higher risk of detachment as well. Regular dilated eye exams are essential. Your retina specialist may recommend more frequent monitoring, especially if you have risk factors such as high myopia, lattice degeneration, or a family history of detachment. Knowing the warning signs and seeking prompt evaluation for any new symptoms in either eye can help protect your remaining vision.
After successful retinal reattachment surgery, many people regain useful vision. However, some patients notice that colors appear slightly different in the treated eye, or that fine detail is not as sharp as before. These changes can be related to the period the retina spent detached. Over time, your brain adapts to these differences. Low-vision aids and rehabilitation services are available for those who experience significant vision changes. Your retina specialist can guide you toward appropriate resources.
To reduce the risk of retinal detachment or re-detachment, wear protective eyewear during sports and activities that could result in eye injury. Keep all follow-up appointments with your retina specialist. If you are highly myopic, have regular dilated eye exams even if you have no symptoms. Report any new floaters, flashes, or changes in vision immediately.
When to See a Retina Specialist
Seek immediate care from a retina specialist or go to the emergency room if you experience a sudden increase in floaters, flashes of light, a curtain or shadow spreading across your vision, or sudden vision loss in one eye. These symptoms can indicate a retinal tear or detachment that requires urgent treatment. Do not wait to see if symptoms improve on their own.
Even without symptoms, people with high myopia, a history of retinal detachment, lattice degeneration, a family history of detachment, or prior eye surgery should have regular dilated eye exams with a retina specialist. Early detection of retinal tears or thinning allows for preventive treatment that can stop a detachment before it starts.
Questions and Answers
In some cases, small tears or slow detachments in the far periphery of the retina may produce very mild symptoms or none at all. This is particularly possible in people with high myopia or lattice degeneration, where the thinning develops gradually. Routine dilated eye exams can catch these problems before they cause noticeable vision loss. However, most retinal detachments do produce at least some warning signs such as new floaters or flashes.
Face-down positioning is required after some types of retinal detachment surgery, particularly vitrectomy with a gas bubble. The gas bubble must press against the area of the retina that was repaired, and your head position determines where the bubble sits inside the eye. Your retina specialist will give you specific instructions about positioning, including how many hours per day and for how many days or weeks. Not all retinal detachment surgeries require face-down positioning, so your instructions will depend on your specific procedure.
Surgery successfully reattaches the retina in about 9 out of 10 people (AAO). Vision recovery depends on several factors. The most important factor is whether the macula, the central part of the retina responsible for sharp vision, was detached before surgery. When the macula remains attached, vision outcomes are generally favorable. When the macula was detached, some improvement in vision is usually possible, but the extent of recovery varies from person to person.
There is no guaranteed way to prevent retinal detachment. However, you can reduce your risk by wearing protective eyewear during sports and physical activities, keeping up with regular dilated eye exams, and knowing your personal risk factors. If a retina specialist finds a retinal tear before it progresses to a detachment, laser or cryopexy can seal the tear and greatly reduce the chance of detachment. Early detection is the most effective form of prevention.
If a gas bubble was placed inside your eye during surgery, you should not fly in an airplane until the bubble has fully dissolved. The change in cabin pressure at high altitude can cause the gas bubble to expand, which may dangerously increase pressure inside the eye. Your retina specialist will monitor the bubble and let you know when it is safe to fly. This restriction typically lasts several weeks but varies depending on the type of gas used. The same precaution applies to traveling to high-altitude locations.