Conjunctivitis (bacterial)

Bacterial conjunctivitis is an infection of the conjunctiva characterised by acute onset of redness, discomfort, discharge in one or both eyes. It occurs more frequently in children and the elderly. The condition often resolves in five-seven days without treatment, but is contagious and care is needed to avoid the infection spreading to family members. This Clinical Management Guideline outlines the aetiology, signs and symptoms and evidence-based recommendations for diagnosing and treating bacterial conjunctivitis. It provides recommendation for non-pharmacological management, treatment with antibiotics and outlines when urgent referral is required.

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What is bacterial conjunctivitis?

Acute bacterial conjunctivitis is an infection of the eye in which one or both eyes become red, watery and sticky, often with discomfort but not pain. The condition is not normally serious and in most cases clears up in a few days. However, it is contagious and care needs to be taken to avoid spread of the infection amongst family members (e.g. not sharing towels etc.). 

How is bacterial conjunctivitis managed?

People with acute conjunctivitis may be given antibiotics, usually in the form of eye drops or ointment, to speed recovery. However, the benefits of antibiotics for the treatment of acute bacterial conjunctivitis have been questioned. Evidence from clinical trials in GP practices suggests that antibiotic drops may not be very helpful, since these patients tend to have a less severe form of conjunctivitis than patients who are referred to a hospital eye clinic.

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Last updated

Conjunctivitis (bacterial)
Version 14
Date of search 17.10.22
Date of revision 20.12.22
Date of publication 20.02.23
Date for review 16.10.24
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