Pink eye (conjunctivitis) is an inflammation or infection of the transparent membrane (conjunctiva) that lines your eyelid and covers the white part of your eyeball. When small blood vessels in the conjunctiva become inflamed, they're more visible. This is what causes the whites of your eyes to appear reddish or pink.

Pink eye is commonly caused by a bacterial or viral infection, an allergic reaction, or in babies an incompletely opened tear duct.

Though pink eye can be irritating, it rarely affects your vision. Treatments can help ease the discomfort of pink eye. Because pink eye can be contagious, early diagnosis and treatment can help limit its spread.

Types of Conjunctivitis

Viral conjunctivitis is the most common type of pink eye. This conjunctivitis is very contagious and often spreads through schools and other crowded places. It usually causes burning, red eyes with a watery discharge.

Bacterial conjunctivitis is also very contagious. An infection from bacteria causes this form of pink eye. With bacterial conjunctivitis, you have sore, red eyes with a lot of sticky pus.

Allergic conjunctivitis is a type of pink eye that comes from an allergic reaction to something. It is not contagious. Allergic pink eye makes your eyes very itchy, red and watery, and the eyelids may get puffy.

Symptoms of Conjunctivitis

• Pink or red color in the white of the eye(s)
• Swelling of the conjunctiva (the thin layer that lines the white part of the eye and the inside of the eyelid) and/or eyelids
• Increased tear production
• Feeling like a foreign body is in the eye(s) or an urge to rub the eye(s)
• Itching, irritation, and/or burning
• Discharge (pus or mucus)
• Crusting of eyelids or lashes, especially in the morning
• Contact lenses that feel uncomfortable and/or do not stay in place on the eye

Causes of Conjunctivitis

• Viruses, including the kind that causes the common cold
• Bacteria
• Irritants such as shampoos, dirt, smoke, and pool chlorine
• A reaction to eyedrops
• An allergic reaction to things like pollen, dust, or smoke. Or it could be due to a special type of allergy that affects some people who wear contact lenses.
• Fungi, amoebas, and parasites

Treatment of Conjunctivitis

Treating your pink eye usually depends on the type of conjunctivitis you have.

If your conjunctivitis is caused by a viral infection, there are no specific treatments. Your body fights the virus on its own. Placing a cool, wet washcloth on your eyes can help make them feel more comfortable.

If your pink eye is caused by a bacterial infection, your ophthalmologist may prescribe antibiotic eye drops, depending on how severe your symptoms are. Antibiotics do not treat an infection caused by a virus or by allergy.

If your conjunctivitis is due to allergies, you might be told to use certain eye drops to help with the itchiness and puffiness.

Sometimes conjunctivitis can be caused by a chemical or other substance in your eye. In this case, rinse the eye free of the substance. You might be told to use certain eye drops or ointment for the eyes.

Media Contact:

Sarah Rose

Journal Manager Journal of Eye Diseases and Disorders

Email: eyedisorders@emedsci.com

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