Refraction in School Children.

Chung, Tae Mo; Paek, Hae Ja; Kim, Seoug Duck; Hong, Soon Kak

Original Article

Journal of the Korean Ophthalmological Society 1974;15(4):282-286.
Published online April 1, 1974.

Refraction in School Children.

Tae Mo Chung, Hae Ja Paek, Seoug Duck Kim, Soon Kak Hong

Department of Ophthalmology, Yonsei University, College of Medicine Seoul Korea.

학동의 굴절상태

정태모 , 백혜자 , 김성덕 , 홍순각 ( Tae Mo Chung , Hae Ja Paek , Seoung Duck Kim , Soon Kak Hong )

Abstract

518 children (282 boys and 236 girs) of a primary school were determined under mydrin-p instillation. (1) Among 518 children, Ammetropia was 43.6% emmetropia 56.4%. (2) As to the distribution of refractive error 38.2% were hyperopia and 4.1% myopic. (3) There was an anuual decrease in the incidence of hyperopia both in the country and city. In contrast, the incidence of myopia showed an annual increase in city only. (4) The majority of refractive error were less than 3 diopter. (5) "With the rule" astigmatism was more commonly found than "against the rule". (6) The incidence of myopia among primary school children in the country had dropped to 4.1 % as compared with 13.7% in city.