ETIOLOGY
- HLA-B27-related conditions (ankylosing spondylitis, reactive arthritis, psoriasis, inflammatory bowel disease)
- Behcet's syndrome
- Herpes simplex or zoster infection
- Sarcoidosis
- Tuberculosis, syphilis, toxoplasmosis
- AIDS (CMV, HSV, herpes zoster, mycobacteria, cryptococcus, toxoplasma, candida)
- Vogt-Koyanagi-Harada syndrome (uveitis, alopecia, poliosis, vitiligo, hearing loss)
- Autoimmune retinal vasculitis
DDx
- Acute glaucoma
- Keratitis
- Conjunctivitis
- Scleritis
- Retinal detachment
- Intraocular tumor
- CNS lymphoma
- Retained intraocular foreign body