A popped blood vessel in the eye looks alarming but almost always heals on its own within one to three weeks without any treatment. The medical name is a subconjunctival hemorrhage, and it happens when a tiny blood vessel breaks just beneath the clear surface of your eye, leaking blood into the white part. Your vision isn’t affected, and the bright red patch is essentially a bruise on your eye’s surface.
Why It Happened
A sudden spike in pressure inside the small blood vessels of the eye is usually the trigger. Everyday actions are the most common culprits: a hard sneeze, a coughing fit, straining on the toilet, vomiting, or lifting something heavy while holding your breath. Even rubbing your eye too hard or a minor bump can do it. Sometimes there’s no obvious cause at all.
Certain health conditions make these tiny vessels more fragile or more likely to break. High blood pressure and diabetes both weaken blood vessel walls over time. Blood-thinning medications, including aspirin, increase the chance of bleeding once a vessel does rupture. Clotting disorders like hemophilia or von Willebrand disease also raise the risk. Contact lens wearers tend to develop more dryness and friction on the eye’s surface, which can lead to inflammation and broken vessels.
What You Can Do at Home
There’s no way to speed up the healing, but you can keep your eye comfortable while it resolves. Artificial tears (available over the counter) help if the eye feels scratchy or irritated. Apply them as often as needed throughout the day.
Beyond that, the most important thing is to leave the eye alone. Resist the urge to rub it, since rubbing can worsen the bleeding or cause a new hemorrhage. If you wear contact lenses, give your eyes a break and switch to glasses until the redness clears. Avoid any medications that thin the blood (like aspirin or ibuprofen) unless they’ve been prescribed for another condition. If you’re on a prescribed blood thinner, don’t stop taking it, but let your doctor know about the hemorrhage.
What Healing Looks Like
The blood spot will shift in color as it heals, much like a bruise on your skin. It typically starts bright red, then fades to orange or yellow before disappearing completely. Small hemorrhages may clear in about a week. Larger ones, where the blood covers more of the white of the eye, can take two to three weeks. The spot may actually look worse before it looks better as the blood spreads out and thins across the surface. This is normal.
Signs That Need Medical Attention
A straightforward popped blood vessel causes no pain and no change in your vision. If you notice any of the following, the problem may be something more serious:
- Pain in the eye, not just mild scratchiness
- Changes in vision, such as blurriness, double vision, or loss of sight
- Bleeding that happened after significant trauma to the eye or head
- Blood inside the colored part of the eye (the iris), not just on the white surface
- Repeated hemorrhages happening frequently without an obvious cause
Recurrent episodes deserve attention because they can signal uncontrolled high blood pressure, diabetes, or a blood clotting disorder that hasn’t been diagnosed yet. A doctor can check your blood pressure and run basic blood work to rule these out.
Reducing the Chance of It Happening Again
Since most burst vessels come from sudden pressure spikes, the key is reducing strain on your body and keeping your blood vessels healthy. If you lift weights or heavy objects, breathe steadily through the effort instead of holding your breath. That breath-holding response (sometimes called the Valsalva maneuver) dramatically increases pressure in the vessels around your eyes and head.
Managing chronic conditions makes a real difference. Keeping blood pressure and blood sugar in a healthy range protects the small vessels throughout your body, including the ones in your eyes. If you take blood thinners, staying consistent with dosing and follow-up blood work helps minimize bleeding risks.
For contact lens wearers, using rewetting drops regularly and replacing lenses on schedule reduces the surface irritation that can contribute to broken vessels. Treating allergies or dry eye also helps, since both conditions lead to more eye rubbing, one of the most common mechanical triggers.