[Feasibility of the new WHO Trachoma Grading System in China]

The New WHO Trachoma Grading System is found feasible in China by an epidemiological survey of trachoma using the two trachoma grading systems, the new WHO system and the Chinese conventional system, especially for large scale examination and treatment and for epidemiological survey. However, the New System regards the proportion of active trachoma amongst children under 10 years as the index of the scope and severity of the disease in a community, while the authors opine that the trachoma prevalence in teenagers, especially in middle school students, better reflects the situation of trachoma infection in a Chinese community.