Our invisible enemies, viruses and harmful bacteria, lie on the basis of complaints such as fever, difficulty in swallowing, cough, sneezing, sore throat and earache. These microbes not only threaten our respiratory tract, but also pose a risk to our eyes. We frequently encounter eye inflammations, which we medically call conjunctivitis, during the winter months due to viral or bacterial infections. In diseases such as colds, flu, tonsillitis, harmful microbes that affect the respiratory tract can easily infect the eyes and cause conjunctivitis. Eye inflammations can also occur due to allergic and chemical reasons. Increased air pollution in the winter months, and those who are allergic to house dust mites and mold fungi spend more time indoors due to the cold, which can trigger allergic conjunctivitis. Another cause of eye inflammation is dry eyes. Intense exposure to wind, moisture loss from indoor heating systems, and dry air can damage the eyes. Conjunctivitis, also known as conjunctivitis among the people, occurs with symptoms such as watering, discharge, burrs, redness, itching, stinging and swelling in the eyes. If any of these symptoms are seen, it is necessary to consult an ophthalmologist as soon as possible. An appropriate treatment plan is determined by the specialist physician according to the type and course of conjunctivitis.