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How is trachoma diagnosed?
Although there are bacteriologic and other tests available, trachoma is commonly diagnosed by examining the eyes and eyelids of the patient. In the rare cases seen in developed countries, the diagnosis is usually by the ophthalmologist. However, in the third world, ancillary personnel are very capable of being trained to make this diagnosis. Trachoma should be suspected from the history and symptoms. It then can be confirmed by an examination which can be performed within the community without the aid of sophisticated office equipment.
If equipment is available, the vision is measured and the eye is inspected with a slit lamp (biomicroscope),
with which characteristic changes in the lids, tear film, conjunctiva, and cornea can
more easily be seen.