Conjunctivitis
	Infectious
		Viral
		Bacterial (e.g., staphylococcus and Chlamydia species)
	Noninfectious
		Allergic
		Dry eye
		Toxic or chemical reaction
		Contact lens use
		Occult conjunctival neoplasm
		Foreign body
		Factitious
		Idiopathic
Keratitis
	Infectious
		Bacterial
		Viral
		Fungal
		Acanthamoeba
	Noninfectious
		Recurrent epithelial erosion
		Foreign body
Uveitis
Episcleritis/scleritis
Acute glaucoma
Eyelid abnormalities
	Entropion
	Lagophthalmos with globe exposure
	Trichiasis
	Molluscum contagiosum
Orbital disorders
	Preseptal and orbital cellulitis
	Idiopathic orbital inflammation (pseudotumor)