An OCT Study of Anterior Nodular Episcleritis and Scleritis
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Tuberculous scleritis is rare. Commonly it presents as anterior nodular scleritis, which can be caused either by direct inoculation or by hematogenous spread of Mycobacterium tuberculosis (M. tuberculosis).

The characteristic nodular inflammatory lesions can be detected by slit-lamp biomicroscopy but assessment of their vertical extension is difficult. However, recently, it was reported that optical coherence tomography (OCT) of the anterior segment can be used in diagnosing anterior scleritis and episcleritis, and here I report the OCT characteristics and changes during treatment of a nodular eyewall lesion in a patient infected with M. tuberculosis.

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