Conjunctivitis

Description
Conjunctivitis is an irritation or infection of the eye caused by bacteria, viruses, chemicals or allergies. Symptoms include a scratchy feeling in one or both eyes and redness in the whites of the eyes. A discharge may be present, causing the eyelids to stick together in the morning. Sensitivity to light is another common symptom. Diagnosis of the source of infection or irritation can be made by examining a smear of the discharge from the eye under a microscope or by culturing the virus or bacteria. This is often not done and so usually the cause is unknown. Viral and bacterial conjunctivitis can be spread by direct contact with secretions from the eye. This type of infection may also be spread indirectly through towels, washcloths, handkerchiefs and other objects that have been contaminated with eye secretions.


Incubation Period
24-72 hours.


Infectious Period
During the entire course of an active bacterial or viral infection, or in the case of a bacterial infection three days after beginning antibiotic treatment. Conjunctivitis caused by chemicals or allergies is not infectious.


Controlling the Spread of Infection
Exclude while there is discharge from the eye.


Treatment
Medication may be prescribed by a doctor. This is usually antibiotic eye drops.


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Disclaimer
The information contained in this website is intended as a guide only. Wollongong Medical Centre is not liable for any problems that may arise from incorrectly or otherwise applying information found in this website.


Further General Information

The following web site has information on infectious diseases: www.health.nsw.gov.au/infect/ or contact the Division of Population and Planning on 4255-2200.

For information on a large range of medical conditions and problems visit www.mayoclinic.com