Subconjunctival Hemorrhage: Understanding a Common Eye Condition
What Is a Subconjunctival Hemorrhage?
A subconjunctival hemorrhage happens when a tiny blood vessel breaks just under the clear covering of your eye, causing a red spot that’s easy to see. Knowing how this condition appears and feels can help you stay calm and know what to expect.
You might notice a sharply outlined, bright red patch on the white part of your eye (the sclera). The size can range from a small spot to covering a larger area. This usually looks more serious than it feels. Most people have no pain, though you might feel slight scratchiness or a sensation like something is in your eye.
Your body naturally absorbs the trapped blood over time, much like a bruise fades from your skin. As it heals, the red patch may change color, often becoming brown or yellow as it fades away over one to three weeks. This process rarely needs any medical treatment.
This bleeding only affects the surface of your eye, not the inside structures. Because of this, a subconjunctival hemorrhage won’t affect your vision or cause permanent damage. Most cases heal without any special intervention.
Causes and Who’s at Risk
Understanding what leads to a subconjunctival hemorrhage can help you prevent it in the future and recognize when a deeper problem might be involved.
Many everyday activities or health conditions can result in a broken blood vessel in your eye. These include:
- Sudden pressure from coughing, sneezing, or straining, actions that raise the pressure in the veins of your head
- Minor eye injuries from rubbing your eye, bumping it, or irritation from contact lenses
- Medications that thin the blood, such as aspirin or anticoagulants, which make it easier for bleeding to start
- Medical conditions like diabetes or high blood pressure that can weaken blood vessel walls
- Sometimes no clear cause can be found, which doctors call “idiopathic” cases
Some people are more likely to experience this type of hemorrhage, including older adults, those on blood-thinning medication, people with certain health conditions, and individuals who do heavy lifting or strenuous activity.
Symptoms and Diagnosis
Knowing the symptoms and how our ophthalmologists diagnose subconjunctival hemorrhage empowers you to seek care confidently when you need it.
The most obvious symptom is a sudden, painless, bright red patch on the white of your eye. There is usually no swelling, no pus or discharge, and your vision stays clear. Occasionally you might feel a mild sense of fullness or slight irritation.
Our ophthalmologists at ReFocus Eye Health Penndel can usually diagnose a subconjunctival hemorrhage just by looking at your eye. We may use a special light or magnifier to make sure the bleeding is only on the surface and not deeper within your eye.
Most cases are harmless, but you should see your eye doctor if:
- The red patch happened after a hard hit or major injury to your eye or head
- You have pain, light sensitivity, or vision changes along with the redness
- The red spot does not begin to fade after two weeks
- You have frequent or repeated hemorrhages with no clear cause
- You notice unexplained bruising or bleeding elsewhere on your body
Treatment and Prevention Tips
Most people with a subconjunctival hemorrhage don’t need any treatment, but there are things you can do for comfort and to help lower your risk of it happening again.
To feel more comfortable while your eye heals, you can:
- Use preservative-free artificial tears up to four times a day to soothe mild scratchiness
- Place a cool compress on your closed eyelid for the first day to help with any minor irritation
- Try a warm compress on the following days, which may help the blood absorb more quickly
- Avoid rubbing your eye so you do not cause further bleeding
Our team shares these tips to help prevent future bleeds:
- Work closely with your primary care provider to keep health conditions like high blood pressure and diabetes well controlled
- Wear protective eyewear when playing sports, doing yard work, or engaging in any activities with eye injury risk
- Practice gentle hygiene if you use contact lenses, and avoid putting in or removing them roughly
- When lifting heavy objects, use proper breathing techniques (exhaling during the lift) to minimize pressure in your head and eyes
If you use blood-thinning medications, do not change your dose or stop them on your own. Let your doctor know if you have had a subconjunctival hemorrhage, as your medication may need to be checked or adjusted safely.
Frequently Asked Questions
Our team at ReFocus Eye Health Penndel answers some of the most common questions patients have about this condition.
A subconjunctival hemorrhage is caused by the breaking of a tiny blood vessel under the clear surface of your eye. This often happens from things like coughing, sneezing, rubbing your eyes, or sometimes for no clear reason at all.
Most subconjunctival hemorrhages begin to fade after about one week and disappear completely within one to three weeks, with no special treatment needed in most cases.
No, this condition affects only the surface of your eye. Your vision stays clear, and there are no lasting problems once the hemorrhage heals.
It is a good idea to avoid wearing contact lenses until the red patch is entirely gone to prevent further irritation. You may use eye makeup, but do so gently and avoid rubbing your eyes during application and removal.
If you have more than one subconjunctival hemorrhage, especially with no clear cause, it’s important to see your eye doctor. Recurrent episodes could suggest a medical condition that needs attention.
Contact us if you experience pain, vision changes, sensitivity to light, if the redness does not improve after two weeks, or if the hemorrhage follows a significant injury.
Your Eye Health Matters to Us
If you have concerns about a red patch in your eye or any other vision problems, ReFocus Eye Health Penndel is here to help. Serving the Penndel community and the Greater Philadelphia Metropolitan Area, our experienced ophthalmologists and eye care team are dedicated to protecting your sight and providing the personal care you deserve.
I love this office. In and out quickly. Staff amazing, friendly. Dr. Soll fantastic. Highly recommend.
Jessica Terneson
First visit at Refocus. Very pleased with Dr. Patricia Martinez and staff, kind, compassionate, knowledgeable and professional.
Grace insogna
Dr. Soll caring, thorough ophthalmologist. Assistant Brooke kind, makes you comfortable. Dionne friendly receptionist, makes you welcome.
Darlene Squire
I see Dr. Soll. He is very knowledgeable, and I trust what he tells me. I recommend him.
Marie Abbate
Dr. Martinez is a really great physician. Very professional, thorough and willing to answer any questions.
David Mintz
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