未就学児における両眼視機能の検討

Binocular function in preschool children

要約　目的：未就学児での眼位と近見立体視を主とした両眼視機能の報告。

対象と方法：栃木県大田原市内の保育園と幼稚園に在籍する3〜6歳の1,597人を対象とした。眼位は交代遮蔽試験，近見時の立体視はTitmus stereo testで評価した。

結果：全体の2.3％に眼位異常があり，うち45.9％には眼科受診歴がなかった。正常範囲外にある近見時の立体視は，全体の4.4％にあり，うち42.6％では眼科的な異常所見はなかった。

結論：視力だけではなく，両眼視機能が発達段階にある未就学児では，両眼視機能検査を含めた健康診断が重要である。

Abstract　Purpose：To report the binocular function including eye position and stereopsis for near in preschool children.

Cases and Method：This study was made on 1,597 children who were attending nursery school or kindergarden and who were aged from 3 to 6 years. Eye position was examined by alternate cover test. Stereopsis for near was examined using Titmus stereo test.

Results：Eye position was found abnormal in 2.3％ of children. There was no past history of ophthalmic consultation in 45.9％ of them. Stereopsis for near was out of normal range in 4.4％ of children. Ophthalmological findings were normal in 42.6％ of them.

Conclusion：Health examination in preschool children ought to include binocular function as well as visual acuity.