Résumé
The authors reviewed charts of 50 consecutive cases which were operated for blowout fracture on preoperative symptoms and signs, intraoperative findings, and surgical prognosis according to timing of surgery, location of fracture and size of fracture, from May 1, 1985, to April 30, 1991, respectively. Most of them had persistent diplopia, positive forced duction test and conspicuous blemish enophthalmos preoperatively. In addtion, the most common site of fracture in the orbital floor was anterior 1/3 with a size of one to two em in vertical diameter. Good prognosis may be expected in patient with anterior fracture of orbital floor, operated within 4 weeks after receiving trauma. Chemosis and lower lid retraction were encountered as an early and late postoperative complications, respectively.