Final answer:
Viral conjunctivitis, often called pink eye, is caused by viruses, especially adenoviruses, leading to watery discharge and is highly contagious. It generally resolves without treatment in one to two weeks.
Step-by-step explanation:
What is the cause of viral conjunctivitis (pink eye)? The cause of viral conjunctivitis, commonly referred to as pink eye, is primarily viruses. Unlike bacterial conjunctivitis, which can produce a thick discharge, viral conjunctivitis is characterized by a more watery discharge and is often associated with upper respiratory infections that could include symptoms like fever and itchy eyes. Viruses most commonly associated with this condition include adenoviruses, but other viruses can also be responsible. Viral conjunctivitis is highly contagious and can spread through contact with eye discharge. It typically resolves without treatment in a week or two, as antibiotic treatment is ineffective against viruses.