Conjunctivitis, also known as pink eye, is an inflammation or infection of the conjunctiva. While conjunctivitis is a common eye condition, it can be uncomfortable and sometimes highly contagious, depending on the cause.
Conjunctivitis can be caused by several different factors:
- Viral Conjunctivitis
This is the most common form of conjunctivitis and is usually caused by viruses such as adenovirus, herpes simplex virus or the varicella-zoster virus. It is highly contagious and spreads through direct contact with infected secretions such as tears or mucus. Symptoms include redness, swelling of conjunctiva, watery discharge, itchy or burning sensation, and usually accompanies a cold or upper respiratory symptoms like runny nose or sore throat. There is usually no treatment for most viral conjunctivitis, it typically resolves on its own in about 1-2 weeks.
- Bacterial Conjunctivitis
Usually caused by bacteria. It is highly contagious and spreads through contact with infected eye discharge. Symptoms include thick yellow, green or white discharge, crusting around eyelids, redness and swelling of conjunctiva, and possibly eye pain or discomfort. It is usually treated with antibiotic eye drops or ointments.
- Allergic Conjunctivitis
This occurs when the conjunctiva reacts to allergens like pollen, dust mites, animal dander or mold. It is common in individuals with seasonal allergies or hayfever. It is not contagious, and symptoms include red, itchy watery eyes, swelling of the conjunctiva, and sensitivity to light. It can be treated with antihistamines, decongestants, mast cell stabilizers or anti-inflammatory drops.
- Irritant Conjunctivitis
This type of conjunctivitis results from exposure to chemicals or irritants such as smoke, chlorine in pools, dust, fumes or cosmetic products. It is not contagious, and symptoms typically include red, watery eyes, itchy or burning sensation and sensitivity to light. It typically resolves on its own once the irritant is removed.
In most cases, conjunctivitis will resolve on its own, but it’s highly recommended to consult an eyecare professional if you experience persistent symptoms or discomfort to ensure accurate diagnosis and appropriate treatment.
Are you experiencing symptoms of conjunctivitis? Contact our clinic to speak with one of our experienced doctors today 289-309-1090!
