Subconjucntival Haemorrage Flashcards
What is a subconjunctival haemorrhage?
It occurs when small, fragile blood vessels rupture in the conjunctiva, causing blood to leak between the conjunctiva and sclera.
What activities or conditions can cause a subconjunctival haemorrhage?
Strenuous activity, eye trauma, hypertension, coughing, and anticoagulants (e.g., warfarin).
What is the typical appearance of a subconjunctival haemorrhage?
A red area on the eye, usually inferior, with visible blood beneath the conjunctiva.
How can the origin of a subconjunctival haemorrhage be identified?
If the posterior border of the haemorrhage is visible, it’s subconjunctival. If not visible, it may suggest an intracranial source requiring emergency referral.
Is subconjunctival haemorrhage usually unilateral or bilateral?
It is usually unilateral.
Does subconjunctival haemorrhage typically cause discharge?
No, there is no discharge associated with it.
What are common symptoms of a subconjunctival haemorrhage?
Mild ache or irritation, though it may also be asymptomatic.
How long does it take for a subconjunctival haemorrhage to resolve?
It usually settles in 2-3 weeks.
What should be done if a patient has a subconjunctival haemorrhage?
Ask the GP for a blood pressure check and a full blood count.
What can be used for discomfort from a subconjunctival haemorrhage?
A cold compress can help relieve discomfort.
What should be checked if a patient has a history of recurrent subconjunctival haemorrhages?
Refer to a GP to check the international normalised ratio (INR), especially if there is skin bruising.
What should be done if a subconjunctival haemorrhage is suspected to have an intracranial source?
Immediate emergency referral is necessary.
Can a subconjunctival haemorrhage occur without any symptoms?
Yes, it can be asymptomatic in many cases.
What systemic condition should be checked in cases of subconjunctival haemorrhage?
Blood pressure should be checked to rule out hypertension as a cause.
What is a key sign that may indicate a more serious cause, such as intracranial haemorrhage?
If the posterior border of the haemorrhage cannot be seen, it may indicate a more serious intracranial source.
