Conjunctivitis

Background

• Most common cause of acute red eye
• Viral infection is usual etiology
• Injected conjunctiva w/ perilimbal sparing
• Rarely painful; more irritated

DDx

1. Viral Conjunctivitis
2. Bacterial Conjunctivitis
3. Allergic Conjunctivitis
4. Herpes Zoster (HZV) Conjunctivitis
5. HSV Conjunctivitis
6. Gonorrheal Conjunctivitis
7. Chlamydia Conjunctivitis
8. Caustic Keratoconjunctivitis

See Also

• Conjunctivitis (Peds)
• Eye Algorithm (Main)

Source

• Mahmood, Narang. Diagnosis & management of acute red eye. Emerg Med Clin N Am 2008;26
• Tintinalli