How can viral conjunctivitis be distinguished clinically from bacterial conjunctivitis?

• A. Viral typically has watery discharge and preauricular lymphadenopathy; bacterial has mucopurulent discharge
• B. Viral has mucopurulent discharge; bacterial watery discharge
• C. Viral discharge is purulent with crusting; bacterial is watery
• D. Viral discharge is bloody; bacterial is clear

Answer: (A)

Discharge type and nearby lymph nodes help distinguish viral from bacterial conjunctivitis. Viral conjunctivitis usually presents with watery, clear discharge and often has preauricular lymphadenopathy, reflecting a systemic viral infection that affects the conjunctiva. It’s frequently bilateral and can accompany upper respiratory symptoms. Bacterial conjunctivitis, on the other hand, tends to produce thicker, mucopurulent discharge that can crust the eyelids, especially in the morning, and it may start in one eye and spread.

The described combination captures this pattern: viral tends to have watery discharge along with preauricular lymphadenopathy, while bacterial tends to have mucopurulent discharge. While overlaps can occur, this pairing is the most characteristic way to clinically separate the two.