Conjunctivitis, often referred to as pink eye, is an inflammation of the conjunctiva, the thin, transparent tissue that lines the outer surface of the eye and the inner surface of the eyelids. This common condition can be caused by a variety of factors, including viral or bacterial infections, allergies, and irritants. Conjunctivitis is highly contagious, particularly in its viral and bacterial forms, which raises concerns about its transmission and survival on surfaces. Understanding how long this infection can last outside the human body is crucial for effective prevention strategies, especially in environments such as schools, homes, and workplaces where close contact is frequent. In recent years, there has been a…