A retinal tear is a full-thickness break in the thin layer of tissue lining the back of your eye, the retina. It happens when the gel filling the inside of your eye pulls on the retina hard enough to rip it. Left untreated, fluid can seep through the tear and peel the retina away from the wall of the eye, causing a retinal detachment and potentially permanent vision loss. The good news: most retinal tears can be sealed quickly with an in-office procedure if caught early.
How a Retinal Tear Forms
The inside of your eye is filled with a clear, jelly-like substance called the vitreous. When you’re young, this gel is firm and evenly attached to the retina. As you age, the gel gradually liquefies, forming pockets of fluid inside it. As it shrinks and condenses, it starts to pull away from the retina in a process called posterior vitreous detachment, or PVD.
In most people, the vitreous peels away cleanly and nothing goes wrong. But the vitreous doesn’t release from the retina at the same speed everywhere. It grips more tightly in certain spots: around the edges of the retina, along major blood vessels, around the optic nerve, and at the center of your visual field. If the gel pulls forward while still stuck at one of these anchor points, the traction can tear the retina like a fingernail catching on fabric.
Eye movements add to the problem. Every time you shift your gaze, the partially detached vitreous can tug dynamically on the spot where it’s still attached, increasing the force on that vulnerable area.
Types of Retinal Tears
Not all tears carry the same risk. The two most common types differ in shape, and that shape tells your eye doctor a lot about what’s likely to happen next.
A horseshoe tear (also called a flap tear) looks like a U-shaped or triangular flap. The tip of the flap gets pulled forward into the eye cavity while the base stays connected to the retina. Because the vitreous is still actively pulling on the flap, this type of tear has a significant risk of progressing to a retinal detachment. Tears in the upper-outer part of the retina are especially dangerous because gravity helps fluid flow downward behind the retina once it gets through the break. Larger tears also carry higher detachment risk.
An operculated tear happens when the vitreous pulls so hard that it rips a small round piece of retina completely free. That little disc of tissue floats in the vitreous like a lid (the “operculum”). Counterintuitively, this is often a better outcome. Once the piece separates, the traction is relieved, and these tears rarely progress to detachment on their own.
Symptoms to Watch For
A retinal tear usually announces itself with two hallmark symptoms: floaters and flashes of light. The floaters can appear suddenly as a shower of dark spots drifting across your vision. The American Society of Retina Specialists describes the sensation as looking like someone shaking pepper into your field of view. You might also see a single large floater shaped like a ring or cobweb.
Flashes of light, called photopsia, are the other warning sign. They’re caused by the vitreous physically tugging on the retina, which stimulates the light-sensitive cells and tricks your brain into perceiving a brief spark or arc of light, often in peripheral vision. These flashes tend to be more noticeable in dim lighting.
Some retinal tears produce no symptoms at all, which is why they’re sometimes found incidentally during a routine dilated eye exam. If you experience a sudden increase in floaters, new flashes, or what looks like a shadow or curtain creeping across part of your vision, that last symptom suggests fluid may already be lifting the retina and you should be seen the same day.
Who Is at Higher Risk
Age is the biggest risk factor because the vitreous naturally degenerates over time. People over 60 have the highest rates of retinal tears and detachments. High myopia (severe nearsightedness) is another major risk factor. Nearsighted eyes are longer than average, which stretches the retina thinner and makes the vitreous more likely to separate unevenly. Research in Investigative Ophthalmology & Visual Science found that myopia-related retinal detachment rates are highest in people aged 61 to 70, at about 12.5 per 100,000 people, and the condition disproportionately affects white and Asian populations and males.
Other factors that raise risk include previous cataract surgery (especially if the lens capsule was damaged during the procedure), a history of retinal detachment in the other eye, a family history of retinal detachment, and participation in contact sports. If you’ve had a detachment in one eye and the other eye has no predisposing features, there’s roughly a 5 percent chance the second eye will develop one too. With additional risk factors, that number rises to 10 percent or more.
How Retinal Tears Are Diagnosed
Your eye doctor will dilate your pupils and examine the retina using a technique called indirect ophthalmoscopy. This gives a wide-angle, well-lit view of the retina, including its far edges near the front of the eye where tears most commonly occur. The doctor may also press gently on the outside of your eye with a small instrument (scleral depression) to bring the very periphery of the retina into view.
For a closer, higher-magnification look, your doctor may use a special contact lens placed on the surface of your numbed eye while you sit at the slit lamp microscope. If blood or debris inside the eye blocks the view, an ultrasound scan (B-scan) can reveal tears and detachments through the obstruction.
Treatment Options
The goal of treating a retinal tear is simple: create a seal around the tear so fluid can’t get through it and lift the retina. Two methods are commonly used, and both are typically performed in the office rather than an operating room.
Laser Photocoagulation
This is the most common approach. Your doctor uses a focused laser to place small burns in a ring around the tear, usually three rows deep. The burns trigger a healing response that welds the retina to the tissue underneath, creating a strong scar that acts as a barrier against fluid. The procedure is done at the slit lamp with a special contact lens and takes only a few minutes. You’ll see the laser as brief flashes of light and may feel a mild stinging sensation. The scar takes a week or two to reach full strength.
Cryopexy
Cryopexy uses a freezing probe applied to the outside of the eye, directly over the location of the tear. The extreme cold passes through the eye wall and creates the same kind of adhesive scar as laser treatment, just from the opposite direction. This method is sometimes preferred for tears located at the very far edge of the retina where laser access is difficult.
After cryopexy, your eye will be red and swollen, and vision will be blurry for a time. Full healing takes about 10 to 14 days. Cold compresses and pain medication can manage discomfort during recovery.
When Tears Don’t Need Treatment
Not every retinal tear requires intervention. Small atrophic holes (caused by thinning rather than traction) and operculated tears in low-risk patients often pose little threat of detachment and can be monitored with periodic exams. The key distinction is whether the vitreous is still pulling on the retina near the break. If traction has been relieved, the risk of progression is low.
However, even an asymptomatic tear warrants treatment in people with high-risk profiles: severe nearsightedness, previous cataract surgery with capsule complications, vitreoretinal degeneration, a personal or family history of detachment, or involvement in contact sports. In these cases, the small procedural risk of sealing the tear is far outweighed by the consequences of a detachment. If you’ve had a retinal detachment in one eye, treating lattice degeneration (a common thinning pattern) in the other eye has been shown to reduce the chance of detachment from about 5 percent to under 2 percent over seven years.