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Journal of the Korean Society of Plastic and Reconstructive Surgeons 2000;27(5):521-524.
Published online September 1, 2000.
Optic Nerve Injury Associated with Facial Trauma.
Kyoung Hwan Kim, You Ree Sohn, Seok Keun Yoo, Young Cheun Yoo
1Department of Plastic and Reconstructive Surgery, College of Medicine, WonKwang University, Iksan, Korea.
2Department of Plastic and Reconstructive Surgery, College of Medicine, KyungHee University, Seoul, Korea.
Abstract
The traumatic optic neuropathy occurs in 0.5 to 5% of closed head trauma cases. Because it may cause permanent blindness, the early diagnosis and proper treatment are very important. We have treated 6 traumatic optic neuropathy patients among 433 head trauma cases from Sep, 1997 to Aug, 1998. Four patients showed visual recovery with steroid therapy. The diagnosis can be made clinically when the patient suffers from acutely decreased vision, Marcus-Gunn pupil, with its relatively normal fundoscopic finding, is considered as the most sensitive indicator and the first herald of visual tract injury, even though visual acuity is normal at the initial stage. The megadose steroid therapy must be diagnosed for the recovery of incompletely injured axons rather than regeneration. The optic canal decompression surgery must be spared for the delayed onset optic neuropathy patients who do not respond to the steroid therapy. In a case of indirect optic neuropathy, the associated orbital fracture reduction should not be undertaken until the optic neuropathy has stabilized. But severely displaced blow-in fracture of the orbit that decreases orbital volume should repaired early for orbital decompression.
Keywords: Optic nerve injury; Steroid therapy; Facial trauma; Facial fracture reduction; Marcus-Gunn pupil
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