交通災害と視神経管骨折

Fracture of the Optic Canal as Sequelae of Traffic Accident

I．はじめに

　近年交通災害の増加に伴い，肉体にそのツメアトを遺され，悩む人も多い。

　特に，生命に直接関係する頭部外傷に関しては，救急処置法の進歩普及につれて，なんらかの後遺症を残すものが，将来さらに増加する心配が生じてくる。

Analysis of 139 patients with disturbance of vision following head contusion due to traffic accident revealed :

1. Fracture of optic canal accounts for 84% of diminution of visual acuity following blunt trauma to the head. This condition must be suspected whenever, at the first examination of patients involved in traffic accident, there exists contusion wound at the upper temporal edge of the orbit accompanied by impaired vision, absent or impaired light reflex and nasal bleeding. For exact diagnosis of frac-ture of the optic canal, stereo-x-ray examina-tion is essential.