Conjunctivitis, commonly known as pink eye, is an inflammation or infection of the conjunctiva, which is the thin, transparent tissue that covers the front surface of the eye and lines the inner surface of the eyelids. It can affect one or both eyes and is a common eye condition.

There are several types of conjunctivitis:
1. **Viral Conjunctivitis:** Caused by a virus, this type is highly contagious and often accompanies common cold symptoms. It usually clears up on its own within a few days to a week.
2. **Bacterial Conjunctivitis:** Caused by bacteria, this form of conjunctivitis can cause more severe symptoms than viral conjunctivitis. It also spreads easily and may require antibiotics to treat the infection.
3. **Allergic Conjunctivitis:** Triggered by allergens such as pollen, dust mites, or pet dander, allergic conjunctivitis is not contagious. It causes red, itchy, and watery eyes and is usually managed with antihistamine eye drops and avoiding allergens.
4. **Chemical Conjunctivitis:** Caused by irritants like smoke, fumes, chlorine, or exposure to chemicals, this type of conjunctivitis can be treated by washing the eyes thoroughly and avoiding the irritants.
The symptoms of conjunctivitis may include:
– Red or pink appearance in the white of the eye
– Itchiness or a gritty feeling in the eye
– Watery or sticky discharge from the eye
– Swelling of the eyelids
– Sensitivity to light
If you suspect you have conjunctivitis, it is essential to see an eye doctor (ophthalmologist or optometrist) for an accurate diagnosis and appropriate treatment. The treatment will depend on the cause of conjunctivitis. Viral conjunctivitis often goes away on its own, but for bacterial conjunctivitis, your doctor may prescribe antibiotic eye drops or ointments. Allergic conjunctivitis can be managed with antihistamine eye drops or other medications.
To prevent the spread of conjunctivitis, practice good hygiene:
– Wash your hands frequently, especially after touching your eyes.
– Avoid touching or rubbing your eyes.
– Avoid sharing towels, pillowcases, or makeup with others.
– If you are diagnosed with conjunctivitis, avoid close contact with others until the infection has cleared up.
