Journal article

The simplified trachoma grading system, amended

Anthony W Solomon, Amir B Kello, Mathieu Bangert, Sheila K West, Hugh R Taylor, Rabebe Tekeraoi, Allen Foster

BULLETIN OF THE WORLD HEALTH ORGANIZATION | WORLD HEALTH ORGANIZATION | Published : 2020

Abstract

A simplified grading system for trachoma was published by the World Health Organization (WHO) in 1987. Intended for use by non-specialist personnel working at community level, the system includes five signs, each of which can be present or absent in any eye: (i) trachomatous trichiasis; (ii) corneal opacity; (iii) trachomatous inflammation—follicular; (iv) trachomatous inflammation—intense; and (v) trachomatous scarring. Though neither perfectly sensitive nor perfectly specific for trachoma, these signs have been essential tools for identifying populations that need interventions to eliminate trachoma as a public health problem. In 2018, at WHO’s 4th global scientific meeting on trachoma, th..

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