Abstract
The ophthalmic examination was performed in Kotsubo Village, Zushi City on July 26 and 27, 1958. Then trachoma was investigated in Kotsubo Primary School and the following results were obtained:
1) The subjects were 116 boys, 43.7±3.1% of all pupils, 159 girls, 62.1±3.0% and 275, 52.7±2.1%, in total.
2) Infection rate: Boys were 5 (4.3±1.8%), girls 16 (10.0±2.0%), and 21 (7.6±2.5%) in total.
3) Infection rate by school years: The sixth-year pupils were 11 (13.9±4.1%), fifth-year 6 (13.0±5.2%), second-year 2 (8.0±5.1%), first- and fourth-year 1 and thirdyear 0. respectively
4) Distribution by stages: Thirteen pupils (62%) was in the I stage, 2 (9.5%) in II and 6 (28.5%) in III.
