Health Tip: What Causes Conjunctivitis

By on September 15, 2010

Conjunctivitis occurs when the membrane that protects the eye, the conjunctiva, becomes inflamed. A red, watery eye is a primary symptom of this very contagious condition.

The University of Virginia Health System says possible causes of conjunctivitis include:

  • An viral or bacterial infection.
  • An allergic reaction, often to a seasonal allergen.
  • Irritation from air pollutants or smoke.
  • Irritation from soap, chlorine or cosmetics.
  • Irritation from a chemical that makes contact with the eye.

Source: HealthDay

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