静岡県下における盲学校生徒の失明原因—（その3）浜松盲学校生徒の検診成績（1964年度）

Causes of Blindness in Schools for the Blind in Shizuoka Prefecture (Part 3)

I．緒言

　著者は静岡県下に於ける盲人調査の一環として県立浜松盲学校生徒の検診をおこない，その失明原因を調査したのでこゝに報告する。

A statistical account is given over the oph-thalmological status of attendants of Hama-matsu School for the Blind, Hamamatsu, in Southeast Japan. Among the 85 pupils exa-mined, the results were obtained as follows.

1) There was a preponderance of males over females at the ratio of 63.5% vs. 36.5%.

2) 80% of the pupils aged less than 20 ye-ars.

3) 85.9% had visual acuity of less than 0.1 and 49.1% had less than 0.02.

4) 60% were congenitally blind and 73.8% were practically blind prior to the age of 10 years.