A popped blood vessel in the eye looks alarming but almost never requires treatment. The bright red patch on the white of your eye is called a subconjunctival hemorrhage, and it’s essentially a bruise, just like when a blood vessel breaks under your skin. It causes no pain, no vision changes, and no discharge. In most cases, the only thing you need to do is wait for it to heal on its own.
What It Looks Like and Why It Happens
A subconjunctival hemorrhage appears as a sharply defined red patch on the white part of your eye. It can be small or cover a large portion of the sclera, which is why it tends to catch people off guard when they look in the mirror. The blood is trapped beneath the thin, clear membrane (the conjunctiva) that covers the white of your eye, so you can’t wash it out or wipe it away.
The most common triggers are things that briefly spike pressure in the tiny blood vessels on the eye’s surface: sneezing, coughing, straining during a bowel movement, vomiting, or heavy lifting. These all involve what’s called a Valsalva maneuver, where you bear down and increase pressure in your head and chest. Rubbing your eyes too hard, a minor bump, or even sleeping in contact lenses can also cause it. Sometimes there’s no obvious trigger at all.
What You Should Do Right Away
The short answer: very little. There’s no way to speed up the healing process, and the hemorrhage doesn’t damage your eye. Here’s what actually helps in the meantime:
- Use artificial tears. If your eye feels scratchy or mildly irritated, over-the-counter lubricating eye drops can soothe the surface. This is the only “treatment” typically recommended.
- Avoid rubbing the eye. Rubbing can irritate the area further or even cause a new hemorrhage.
- Skip aspirin and ibuprofen if possible. These can thin your blood slightly and may slow clotting. If you take them for a medical condition, don’t stop without checking with your doctor first.
- Leave your contact lenses out for a day or two if the eye feels irritated.
You don’t need to patch the eye, apply a cold compress, or restrict your activities. It’s cosmetic, not dangerous.
How Long It Takes to Heal
Most subconjunctival hemorrhages clear completely within two to three weeks. The color changes are predictable and follow the same pattern as a bruise on your arm. The patch starts bright red, then darkens over the first few days. As your body reabsorbs the blood, it shifts to a yellowish-green before fading entirely. A larger patch of blood simply takes longer to reabsorb than a smaller one.
The redness often looks worse before it looks better, spreading slightly across the white of the eye in the first day or two. This is normal. The blood is just settling and dispersing under the membrane.
When It Could Signal Something More Serious
A single, painless episode with no vision changes is almost always harmless. But certain signs suggest you should get it checked:
- Pain in the eye. A true subconjunctival hemorrhage is painless. Eye pain could indicate a deeper injury or elevated eye pressure.
- Changes in vision. Blurriness, double vision, or loss of vision points to bleeding inside the eye rather than on the surface.
- Discharge from the eye. This suggests an infection rather than a simple hemorrhage.
- Hemorrhage after a direct blow or trauma. Impact injuries can cause damage beyond the surface that isn’t visible without an exam.
- Frequent recurrence. If you’re getting these repeatedly, it may be worth investigating underlying causes.
Blood Thinners and Recurring Episodes
If you take blood-thinning medications, you’re more likely to develop subconjunctival hemorrhages, and they may take longer to resolve. Anticoagulants work by reducing your blood’s ability to clot, which naturally makes bleeding under the surface easier to trigger and slower to reabsorb. This applies to prescription blood thinners as well as daily aspirin use.
Recurring hemorrhages, especially without an obvious trigger like a hard sneeze, can also be linked to high blood pressure or diabetes. Both conditions weaken the walls of small blood vessels over time, making them more prone to breaking. If you’re getting subconjunctival hemorrhages more than once or twice a year, it’s reasonable to have your blood pressure checked and mention the pattern to your doctor. A single episode doesn’t warrant this kind of workup, but a pattern does.
What Won’t Help
Eye whitening drops (the kind that “get the red out”) won’t help and aren’t designed for this situation. They work by constricting surface blood vessels to reduce redness from irritation, but a subconjunctival hemorrhage is trapped blood, not dilated vessels. The redness comes from blood pooled beneath the membrane, so constricting vessels on top does nothing useful.
Cold compresses are sometimes suggested online, but there’s no evidence they speed healing. The blood has already leaked and pooled. Unlike a fresh bruise on your arm where cold can limit swelling, the thin tissue over the eye doesn’t swell in the same way. If a cool cloth feels soothing, there’s no harm in it, but it won’t change the timeline.