Conjunctivitis (Pink Eye)

Conjunctivitis

Conjunctivitis, commonly known as pink eye, is an inflammation or infection of the conjunctiva, the thin, transparent membrane that covers the white part of the eye and the inner surface of the eyelids. This condition is characterized by redness, itching, and a gritty feeling in the eye, and it can affect one or both eyes. While conjunctivitis is usually not serious and often resolves on its own, it can be uncomfortable and, in some cases, contagious.

Causes of Conjunctivitis

  • Viral Conjunctivitis: Often caused by the same virus responsible for the common cold. It is highly contagious and spreads through contact with eye secretions or contaminated surfaces.
  • Bacterial Conjunctivitis: Caused by bacterial infections, this type can also spread easily and is often treated with antibiotic eye drops or ointments.
  • Allergic Conjunctivitis: Triggered by allergens such as pollen, dust, or pet dander. It is not contagious and is usually associated with other allergy symptoms like sneezing and a runny nose.
  • Irritant Conjunctivitis: Caused by exposure to irritants such as smoke, chlorine in swimming pools, or chemical fumes. This type can often be managed by flushing the eye with clean water and avoiding the irritant.

Symptoms of Conjunctivitis

The symptoms of conjunctivitis can vary depending on the cause but commonly include:

  • Redness in the white part of the eye or inner eyelid
  • Itching or burning sensation
  • Watery or thick discharge, which may cause the eyelids to stick together, especially after sleep
  • Swelling of the conjunctiva or eyelids
  • Sensitivity to light or blurred vision due to discharge