Conjunctivitis, commonly known as "eye flu," is an eye condition characterized by redness, itching, and inflammation of the conjunctiva, the thin, transparent membrane covering the white part of the eye. Common symptoms include excessive tearing, discharge, grittiness, and a sensation of something in the eye. Patients may experience blurred vision, light sensitivity, and swollen eyelids. Eye flu can be caused by viral, bacterial, or allergic factors, with each type presenting slightly different symptoms. It's important to seek prompt medical attention for an accurate diagnosis and appropriate treatment, as untreated conjunctivitis can lead to complications and potential transmission to others.