Bacterial infection of the corneum usually follows an injury and corneal ulcers and infiltrates should initially be assumed to be bacterial, unless a high index of suspicion exists for another aetiology.
Common causative organisms include (1,2):
Infection with ulceration is accompanied by symptoms such as:
Corneal oedema is seen as greyness or opacity.
Severe keratitis is associated with large diameter lesions, infiltration of stroma, and inflammation of the anterior chamber (4).
Fluorescein staining will demarcate any areas of ulceration.
The eye should be inspected thoroughly for the presence of a foreign body.
Reference:
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