Eye flu, also known as viral conjunctivitis, is a highly contagious condition caused by adenoviruses, according to the Professional Association of German Ophthalmologists. These resilient viruses are primarily transmitted through direct contact—such as rubbing the eyes after shaking hands with an infected individual or touching contaminated surfaces like door handles or stair railings.
Recognising the Symptoms
Typical symptoms of eye flu include redness, swelling, itching, burning sensations in the eyes, and excessive tearing. In some cases, the lymph nodes near the ears may also become swollen. While the infection often begins in one eye, it usually spreads to the other eye shortly after. Many patients also experience blurred or impaired vision due to inflammation of both the cornea and conjunctiva.
Diagnosis and Causes
To determine whether adenoviruses are the cause, physicians typically take a swab from the affected eye using a cotton pad. The sample is then analysed in a laboratory. If viral agents are detected, a diagnosis of viral conjunctivitis—commonly referred to as eye flu—is confirmed. Alternatively, the presence of bacteria suggests bacterial conjunctivitis, which is treated differently.
Treatment and Precautions
Because eye flu is caused by a virus, antibiotics are not effective. Instead, treatment focuses on managing symptoms using anti-inflammatory eye drops. If dryness is an issue, lubricating eye drops or ointments containing hyaluronic acid or dexpanthenol can help maintain adequate tear film and relieve discomfort.
Due to its high level of contagiousness, individuals diagnosed with eye flu are advised to stay home from work or school until they have fully recovered. The incubation period for the virus can be up to two weeks, making early diagnosis and strict hygiene measures essential to prevent further spread.
