Conjunctivitis (Pinkeye)

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Conjunctivitis, also known as pinkeye, is an inflammation of the conjunctiva. The conjunctiva is the thin clear tissue that lies over the white part of the eye and lines the inside of the eyelid.

What Causes Pinkeye?

Pinkeye has a number of different causes, including:

  • Viruses
  • Bacteria (such as gonorrhea or chlamydia)
  • Irritants such as shampoos, dirt, smoke, and pool chlorine
  • Allergies, like dust, pollen, or a special type of allergy that affects some contact lens wearers

Pinkeye caused by some bacteria and viruses can spread easily from person to person, but is not a serious health risk if diagnosed promptly. Pinkeye in newborn babies, however, should be reported to a doctor immediately, as it could be a vision-threatening infection.

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What Are the Symptoms ?

The symptoms of pinkeye differ based on the cause of the inflammation, but may include:

  • Redness in the white of the eye or inner eyelid
  • Increased amount of tears
  • Thick yellow discharge that crusts over the eyelashes, especially after sleep
  • Green or white discharge from the eye
  • Itchy eyes
  • Burning eyes
  • Blurred vision
  • Increased sensitivity to light
  • How Is Treated?

    • Bacteria. Pinkeye caused by bacteria, including those related to STDs, is treated with antibiotics, in the form of eye drops, ointments, or pills. Eye drops or ointments may need to be applied to the inside of the eyelid three to four times a day for five to seven days. Pills may need to be taken for several days. The infection should improve within a week. Take or use the drugs as instructed by your doctor, even if the symptoms go away.
    • Viruses. This type of pinkeye often results from the viruses that cause a common cold. Just as a cold must run its course, so must this form of pinkeye, which usually lasts from four to seven days. Viral conjunctivitis can be highly contagious. Avoid contact with others and wash your hands frequently. If you wear contact lenses, you should throw away contacts worn while you have pinkeye and wear glasses. Same for makeup.
    • Irritants. For pinkeye caused by an irritating substance, use water to wash the substance from the eye for five minutes. Your eyes should begin to improve within four hours. If the conjunctivitis is caused by acid or alkaline material such as bleach, immediately rinse the eyes with lots of water and call your doctor immediately.
    • Allergies. Allergy-associated conjunctivitis should improve once the allergy is treated and the allergen removed. See your doctor if you have conjunctivitis that is linked to an allergy.
    • Complications

    • Usually, pinkeye is a self-limited disease, either clearing up on its own or after a course of antibiotics. However, certain forms of conjunctivitis can become serious and sight-threatening, because they can cause cornea scarring. They include conjunctivitis caused by gonorrhea, chlamydia, or certain strains of the adeno virus.

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