Conjunctivitis, commonly known as pink eye, is an inflammation of the conjunctiva, the thin, transparent membrane that lines the eyelid and covers the white part of the eyeball. This condition can be caused by a variety of factors, including viral or bacterial infections, allergens, and irritants like smoke or chemical exposure. Symptoms typically include redness in the white part of the eye, a sensation of grittiness, tearing, and sometimes discharge that can crust over the eyelashes, particularly after sleep.
Viral conjunctivitis is the most common type and often resolves on its own, while bacterial conjunctivitis may require antibiotic treatment. Allergic conjunctivitis occurs as a response to allergens such as pollen or pet dander and is usually accompanied by intense itching and tearing. Treatment approaches vary depending on the cause; for example, cool compresses can provide relief for allergic reactions while proper hygiene and possibly prescribed medications are essential for bacterial causes. If you suspect you have conjunctivitis, particularly if accompanied by vision changes, it's best to consult with a healthcare professional for proper diagnosis and treatment.