Keratoconjunctivitis

**Keratoconjunctivitis**
*Classifications and external resources*
ICD-10	H16.2
ICD-9	370.40

Keratoconjunctivitis refers to an inflammation ("itis") of the cornea and conjunctiva.

When only the cornea is inflamed, it is called keratitis; when only the conjunctiva is inflamed, it is called conjunctivitis.

There several potential causes of the inflammation:

Keratoconjunctivitis sicca is used when the inflammation is due to dryness. ("Sicca" means "dryness" in medical contexts.)
The term "Vernal keratoconjunctivitis" (VKC) is used to refer to keratoconjunctivitis occurring in spring, and is usually considered to be due to allergens.
"Atopic keratoconjunctivitis" is one manifestation of atopy.
"Epidemic keratoconjunctivitis" is caused by an adenovirus infection.
"Infectious bovine keratoconjunctivitis" (IBK) is a disease affecting cattle caused by the bacteria Moraxella bovis.
"Superior limbic keratoconjuctivitis" is thought to be caused by mechanical trauma.