* Irritation * Discomfort or pain * Foreign-body sensation * Tearing * Blepharospasm * Photophobia * Mucopurulent discharge (rarely) In cases where the cornea is affected, pain and photophobia are more likely, and corneal scarring can occur (potentially impairing vision). Presentation The syndrome is marked by the appearance of characteristic lesions, known as phlyctenules, on the cornea and/or conjunctiva. These usually manifest as small (1 - 3 or 1 - 4 mm) raised nodules, pinkish-white or yellow in color, which may ulcerate (or, more rarely, necrose) and are often surrounded by dilated blood vessels. Corneal lesions are usually triangular in shape, with the base at the limbus and the apex pointing towards the center of the cornea.
Phlyctenular keratoconjunctivitis
Superior limbic keratoconjunctivitis
Ocular larva migrans
Vernal keratoconjunctivitis
Actinic conjunctivitis
Ligneous conjunctivitis
Adenoviral keratoconjunctivitis
Sympathetic ophthalmia