Management of Subconjunctival Hemorrhage
Subconjunctival hemorrhage is a benign, self-limiting condition that typically resolves without treatment within 1-2 weeks and requires only reassurance and observation in most cases.
Definition and Presentation
- A subconjunctival hemorrhage appears as a bright red patch on the white of the eye (sclera)
- Blood accumulates between the conjunctiva and sclera due to rupture of small blood vessels
- Usually painless with no visual changes
- May be localized or diffuse, depending on cause
Etiology
Subconjunctival hemorrhages can occur due to various causes:
- Spontaneous/Idiopathic (most common)
- Trauma (including minor trauma like eye rubbing)
- Valsalva maneuver (coughing, sneezing, straining)
- Contact lens use
- Systemic conditions:
- Hypertension
- Diabetes
- Arteriosclerosis
- Bleeding disorders
- Anticoagulant medications
- Rare causes:
Assessment
History:
- Onset and duration
- History of trauma or Valsalva maneuver
- Contact lens use
- Medication history (anticoagulants)
- Systemic diseases (hypertension, diabetes)
- Previous episodes
Examination:
- Visual acuity assessment
- Slit lamp examination to determine extent and location
- Blood pressure measurement
- Assessment for other ocular pathology
Management Algorithm
For First-Time, Uncomplicated Subconjunctival Hemorrhage:
Reassurance:
- Explain benign nature of condition
- Inform patient about expected resolution within 1-2 weeks
Supportive Care:
- Artificial tears for comfort if mild irritation is present
- Cold compresses for the first 24-48 hours to reduce swelling
- Avoid eye rubbing
No specific medication required
For Recurrent or Extensive Subconjunctival Hemorrhage:
Evaluate for underlying causes:
- Check blood pressure
- Consider blood work (complete blood count, coagulation profile)
- Review medication history (especially anticoagulants)
Management based on cause:
- Hypertension: Optimize blood pressure control
- Bleeding disorders: Refer to hematology
- Medication-induced: Consider medication adjustment in consultation with prescribing physician
Special Considerations:
- If associated with trauma: Perform thorough ocular examination to rule out other injuries
- If recurrent or persistent: Consider workup for systemic hypertension, bleeding disorders, systemic and ocular malignancies 3
Follow-up
- Routine follow-up is not necessary for first-time, uncomplicated cases
- Follow-up in 1-2 weeks if:
- Hemorrhage is extensive
- Patient is on anticoagulants
- There are recurrent episodes
- Patient has known bleeding disorder
Patient Education
- Reassure that vision is not affected
- Explain expected timeline for resolution (1-2 weeks)
- Advise to return if:
- Pain develops
- Vision changes
- Hemorrhage does not resolve within 2-3 weeks
- New hemorrhages develop
Clinical Pearls
- Subconjunctival hemorrhages tend to be more common in the inferior areas of the conjunctiva, except in traumatic cases where they are more common in the temporal areas 4
- Age-related increase in extent of hemorrhage has been observed 4
- In patients undergoing intravitreal injections, topical oxymetazoline 30 minutes before the procedure can reduce the incidence of subconjunctival hemorrhage 5
When to Refer to Ophthalmology
- Recurrent episodes without clear etiology
- Associated with significant ocular pain or vision changes
- Suspicion of underlying ocular pathology
- Failure to resolve within expected timeframe (2-3 weeks)