What Are Retinal Tears and Retinal Detachment?
A retinal tear is a full-thickness break in the retina, the thin layer of tissue at the back of your eye that converts light into the signals your brain uses to see. Most tears happen when the vitreous (the gel that fills the inside of your eye) shrinks with age and pulls away from the retina in a process called posterior vitreous detachment (PVD). If the vitreous pulls hard enough at a spot where it’s firmly attached, it can rip the retina.
A retinal detachment occurs when fluid passes through a tear and collects beneath the retina, lifting it away from the tissue that supplies it with oxygen and nutrients. Once detached, the retina’s light-sensing cells begin to die. Without surgical treatment, retinal detachment almost always leads to permanent vision loss in the affected eye.
The key clinical fact: a retinal tear caught and treated promptly with a brief in-office laser procedure can prevent a detachment from ever occurring. Untreated symptomatic tears progress to detachment in 30–50% of cases, but prompt treatment reduces that risk to less than 5%.
Types of Retinal Detachment
There are three types of retinal detachment, each with a different cause and treatment approach.
Rhegmatogenous Retinal Detachment (RRD)
This is the most common type. It occurs when a retinal tear or hole allows liquefied vitreous to flow beneath the retina and separate it from the back wall of the eye. Risk factors include aging, nearsightedness, prior cataract surgery, eye trauma, and lattice degeneration (a thinning of the peripheral retina). RRD can progress rapidly — a tear in the upper retina can lead to a macula-involving detachment within hours.
Tractional Retinal Detachment
Scar tissue on the retinal surface contracts and physically pulls the retina away from the back of the eye, without a tear. This type is most commonly caused by proliferative diabetic retinopathy and develops gradually rather than suddenly. Treatment involves vitrectomy surgery to remove the scar tissue.
Exudative (Serous) Retinal Detachment
Fluid collects beneath the retina without a tear or traction, typically caused by inflammatory conditions, tumors, or severe high blood pressure. Unlike the other types, exudative detachment is treated medically by addressing the underlying cause.
Common Symptoms
Retinal tears and detachments are typically painless, which is important to understand because the absence of pain can lead people to delay seeking care. The retina itself has no pain fibers. The warning signs are visual, not physical.
Symptoms of a retinal tear (without detachment):
- A sudden shower of new floaters — dark spots, cobwebs, or strands drifting across your vision. The concern is a sudden increase in number, not the one or two chronic floaters many adults have.
- Flashes of light in the peripheral vision, often described as brief arcs or lightning streaks, most noticeable in dim lighting.
- Mildly hazy vision if a small blood vessel was torn along with the retina.
Symptoms that suggest a retinal detachment is occurring:
- A curtain, shadow, or dark veil spreading across any part of your visual field — this represents the area of retina that has detached.
- Sudden blurred or distorted vision.
- Progressive loss of side vision, or loss of central vision if the detachment reaches the macula.
Any combination of new floaters, flashes, and visual field loss requires immediate evaluation.
Causes and Risk Factors
The most common cause of retinal tears is posterior vitreous detachment (PVD), the normal age-related process in which the vitreous gel shrinks and separates from the retina. Most PVDs are harmless — about 85% of patients never develop complications — but when the vitreous is abnormally adherent to certain areas of the retina, the pulling force can create a tear.
- Age: Risk increases with age, primarily because PVD becomes more common. The peak incidence of retinal detachment is in the 60s and 70s.
- Nearsightedness (myopia): One of the strongest risk factors. Nearsighted eyes are longer, have thinner peripheral retinas, and undergo PVD earlier. The risk increases substantially above -3 diopters and dramatically above -6 diopters.
- Prior cataract surgery: Approximately 1 in 500 cataract surgery patients develop a retinal detachment within the first year. The risk can extend for several years after surgery.
- Eye trauma: Both blunt and penetrating injuries can cause tears and detachments.
- Prior retinal detachment in the other eye: The fellow eye carries an estimated 10–15% lifetime risk.
- Lattice degeneration: A thinning of the peripheral retina present in 6–8% of the general population. It creates points of firm vitreous adhesion where tears are more likely.
- Family history: An independent risk factor, likely reflecting inherited characteristics of the vitreous and retina.
- Connective tissue disorders: Conditions like Stickler syndrome and Marfan syndrome significantly increase the risk.
How Are Retinal Tears and Detachments Diagnosed?
Diagnosis requires a thorough dilated examination of the retina by a vitreoretinal specialist. At Retina Vision Consultants, we use a combination of clinical examination and advanced imaging to identify tears, assess detachments, and plan treatment.
- Indirect Ophthalmoscopy with Scleral Depression: The primary method for examining the far peripheral retina, where most tears occur. Gentle pressure on the outside of the eye brings the most peripheral areas into view — approximately 15% of retinal tears are only visible with this technique.
- Optical Coherence Tomography (OCT): A non-invasive scan that produces cross-sectional images of the retina, used to determine whether the macula is still attached — a critical factor in surgical urgency and visual prognosis.
- B-scan Ultrasonography: Used when the retina cannot be seen directly, most commonly because of bleeding inside the eye. Ultrasound can reliably detect retinal detachments even when the view is blocked.
- Ultra-Widefield Fundus Photography: High-detail imaging to document the location and extent of tears and detachment, providing a baseline for monitoring and surgical planning.
The macula-on vs. macula-off distinction is the single most important factor in determining your visual prognosis. If the macula is still attached when surgery is performed, 93% of patients achieve vision good enough for driving at 10 years. If the macula has already detached, that number drops to 65%. This is why every hour matters.
Treatment Options at RVC
Treatment depends on whether you have a retinal tear without detachment, or a retinal detachment requiring surgical repair. The goal in every case is to seal any breaks in the retina and reattach the retina to its underlying tissue.
Laser Retinopexy (For Retinal Tears)
The first-line treatment for retinal tears without detachment. An intense laser is applied around the tear through a contact lens placed on the eye, creating a seal that prevents fluid from passing through. The procedure is performed in-office in under 15 minutes, requires no incision, and most patients return to normal activities within a few days. Laser treatment reduces the risk of a tear progressing to detachment from 30–50% down to less than 5%.
Cryopexy (For Retinal Tears)
An alternative to laser in which extreme cold is applied to the outside of the eye over the tear to create the same type of seal. Cryopexy is preferred when bleeding or cloudiness inside the eye would block laser energy, or when the tear is in a very peripheral location that laser cannot easily reach. It is performed in-office under local anesthesia in about 30 minutes.
Pneumatic Retinopexy (For Select Detachments)
An in-office procedure for uncomplicated detachments caused by a single tear in the upper portion of the retina. A gas bubble is injected into the eye and rises against the tear, holding the retina in place while laser or cryopexy seals it. Patients must maintain specific head positioning for several days. This approach produces excellent visual outcomes and faster recovery, but has a higher rate of needing additional procedures compared to operating room surgery.
Scleral Buckle (For Retinal Detachment)
A silicone band is surgically secured to the outside of the eye, permanently indenting the eye wall inward to close the retinal tear and relieve the vitreous traction that caused it. Cryopexy is typically applied at the same time to seal the break. Scleral buckle is performed in an operating room as an outpatient procedure and is particularly well suited for younger patients.
Pars Plana Vitrectomy (For Retinal Detachment)
The most common surgical approach for retinal detachment in the United States. Three tiny ports are created in the eye to insert microsurgical instruments. The vitreous gel is removed, all retinal tears are identified and sealed with laser, and a gas bubble or silicone oil is placed inside the eye to hold the retina in position while it heals. Surgery is performed as an outpatient procedure under local anesthesia with sedation. Patients with a gas bubble must avoid air travel until the bubble is fully absorbed (up to 8 weeks depending on the gas used).
Living With a Retinal Tear or Detachment: What to Expect
If you have a retinal tear that is treated promptly with laser or cryopexy, the prognosis is excellent. The seal typically holds, your vision is preserved, and you can return to normal activities within days. You will need a follow-up exam to confirm the seal is stable.
If you have had retinal detachment surgery, recovery takes longer. With modern techniques, over 90% of retinal detachments are successfully reattached, and the final success rate — including cases needing more than one procedure — can approach 98%. Visual recovery depends most on whether the macula was attached at the time of surgery.
Recovery from vitrectomy or scleral buckle typically involves several weeks of restricted activity and, if a gas bubble was used, specific head positioning for 5–14 days. Vision improves gradually over weeks to months, with full stabilization potentially taking up to a year. Driving is restricted until the gas bubble has substantially absorbed and your surgeon clears you. No air travel is permitted until the gas is fully absorbed.
After successful repair, you will need periodic follow-up to monitor for re-detachment and changes in the other eye, which carries an elevated risk.
When to See a Retina Specialist
A sudden shower of new floaters, flashes of light, or any curtain or shadow across your vision should be evaluated the same day. Do not wait to see if symptoms improve — retinal detachment does not heal on its own, and every hour of delay increases the risk of permanent central vision loss.
If you are experiencing any of these symptoms, call Retina Vision Consultants immediately at (310) 269-8565 to request an emergency appointment. If you have risk factors for retinal tears — including nearsightedness, prior cataract surgery, or a previous tear or detachment in the other eye — regular dilated exams can catch problems before they become emergencies.
