What Causes a Blood Vessel in Your Eye to Burst?

A burst blood vessel in the eye

A burst blood vessel in the eye is often referred to as a subconjunctival hemorrhage. This occurs when a small blood vessel breaks just underneath the surface of the conjunctiva, the clear membrane covering the white part of the eye. The exact cause of a burst blood vessel in the eye can vary, but common factors include:

  • Straining: Intense physical activities or straining, such as heavy lifting, sneezing, coughing, or vomiting, can increase pressure in the blood vessels and lead to a burst vessel.
  • Eye Rubbing: Excessive rubbing of the eyes, whether due to irritation, allergies, or fatigue, can cause blood vessels to break.
  • Trauma: Injury to the eye or head trauma can result in a burst blood vessel. Even minor trauma, such as rubbing the eye too vigorously, can lead to this condition.
  • High Blood Pressure: Hypertension (high blood pressure) can weaken blood vessels and make them more prone to rupturing.
  • Medications: Certain medications, such as blood thinners (anticoagulants) or antiplatelet drugs, can increase the likelihood of bleeding and contribute to a burst blood vessel.
  • Eye Infections: Infections affecting the eye, such as conjunctivitis, can lead to inflammation and vessel rupture.
  • Straining During Bowel Movements: Constipation or straining during bowel movements can increase intra-abdominal pressure and potentially cause a burst blood vessel in the eye.
  • Viral Illnesses: Some respiratory infections or viral illnesses can cause persistent coughing or sneezing, increasing the risk of a subconjunctival hemorrhage.
  • Underlying Health Conditions: Certain medical conditions, such as diabetes or blood clotting disorders, can affect blood vessel health.

It’s important to note that a burst blood vessel in the eye is usually a benign and self-limiting condition. It does not typically cause pain or vision changes, and the blood typically gets reabsorbed over time. However, if someone experiences recurrent subconjunctival hemorrhages, has accompanying symptoms, or is uncertain about the cause, it’s advisable to consult with an eye care professional for a thorough evaluation. Additionally, if there are other concerning symptoms, such as eye pain, vision changes, or persistent bleeding, prompt medical attention should be sought.

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