C値と眼圧および屈折

On the Relation between C-Value, Ocular Tension and Refraction

　屈折と眼圧，特にC値の面を調べた。

I．C （0.19以下）率（第1〜4表）

　1）一般に眼圧28〜20mmHg群には異常C （0.2以下とする）は60％，眼圧19mmHg以下でも34％（第1表）みられる。

　2）これを年齢別にみると，異常Cは眼圧19〜15mmHgのさい，1〜5歳で23％，15〜39歳で46％，40歳以上で36％位にある（第2〜4表）。

The purpose of this paper is to report about the relation between C-value, ocular tension and refraction.

1) The incidence of those patients whose C-value is 0.19 or less, is 64 per cent in the group of ocular tension of 25 to 28mmHg, 56 per cent in 20 to 25mmHg, 37 per cent in 15 to 19mmHg and 31 per cent in 14 mmHg or less.

2) In the group aged 15 years or older, pa-tients who have abnormal C-value in the groupof 15 to 19mmHg, exist more frequently in high grade of myopia ( -6D≲) than in emmetropia.

3) The same tendency is seen in the group of 1 to 15 years of age, in general, regardless of ocular tension.