This is an ocular hypersensitivity reaction to conjunctival infection with bacteria, especially Staphylococcus aureus.
It presents with:
The limbus may be outlined by elongated ulcers and corneal infiltrates. Characteristically, the ulcers do not spread centrally.
Provided that a dendritic ulcer is excluded, marginal keratitis may be treated with topical antibiotics and steroids.
Last reviewed 01/2018