What is it?
Episcleritis is a focal inflammation of the deep subconjunctival (episcleral) tissue.
Usually an isolated condition, it may be seen as part of viral or idiopathic autoimmune conditions.
How does it present?
With ocular pain and a red eye. The conjunctival vessels are often especially dilated at a . Discharge is minimal.
What to do?
Refer urgently to an ophthalmologist because the diagnosis is difficult. Episcleritis often responds to systemic nonsteroidal anti-inflammatory agents.