視神経コロボームの7例

Seven case of coloboma of the soptic nerve head

1．緒言

　視神経乳頭欠損症の報告例は稀なものではなく本邦に於ても既に100例に近い報告があるが，その臨床所見は多様であり，成因については未だ定説がない。私は最近所謂神神経乳頭コロボーム7例に遭遇する機会を得たので簡単に報告する。

Seven cases, clinically diagnosed as Coloboma of the optic nerve head, were reported.

One was a papillary deformation of the optic nerve, and the other 6 cases were defects of the optic nerve heads, 4 cases of which belonged to Caspar's Ⅱ type, and 2 cases to Casp-ar's Ⅲ type.

Visual acuity of 2 cases was a degree to be able to distinguish the numbers of thcl fingers, and 2 cases were less than 0.1 in visual acuity, one case was 0.2, and one case was 1.0.

2 cases showed a stenosis of the peripheral visual field. As complications, we found colo-boma chorioideae.