what are some common causes of conjunctivitis
Conjunctivitis is easily spread from person to person. The most common cause of conjunctivitis is infection with bacteria or a virus. This often happens when bacteria gets into your eye. This can happen when you touch your eye or wear contact lenses. Allergies are also a common cause of conjunctivitis. The cells in your conjunctiva can react to an allergen.
It is the most common cause of âred eye.â The etiology can usually be determined by a careful history and an ocular examination, but culture is occasionally necessary to establish the diagnosis or to guide therapy. Conjunctivitis is commonly caused by bacteria and viruses.