98th Annual Meeting DOG 2000

K 302

Airbag-induced relative ischemia of choriocapillaris

C. E. Uhlig, H. Gerding

Introduction: We report on an unusual eyebulb-contusion due to an accident with airbag-effect.

Case report: A 23-year old man experienced a street-car accident and crashed into the airbag. He obviously did not come to any general harm nor did he complain about reduced visual outcome or ophthalmological symptoms except moderate bilateral lid-edema and a pseudoptosis on his left side. Pupillary reaction was regular, visual outcome 1.25 without correction on his right and 0.8 on his left side with emmetropia. Anterior and posterior segments didn’t show any signs of trauma or inflammation. Left-side perimetrie revealed progressive concentric reduction till 10° within 48 h. VECP-latencies were usual with 102 ms. A computertomography of the optic nerve and orbit presented as normal. Fluorescence angiography displayed leakage during arterial sequence due to window-effects and edematous hyperfluorescence in the venous phase. Intravenous infusions were started with dexamethason-phophate 8 mg 3 times/d over 72 hours and pentoxyfillin 300 mg i.v. as well as 400 mg p.o. 3 times/d during 1.5 week. Left-side visual outcome reduced to 0.4 in the first 3 days but improved again under therapy to 0.8 (0.0 - 0.75 /A 7° = 1.0). Perimetry ameliorated and presented nearly regular ten days later.

Conclusions: Visual reduction and perimetric defects resulted from choriocapillary ischemia as an effect of airbag. Typical signs of a common blunt trauma (intraocular bleeding, macular edema or choroid ruptures), ie. squash-ball triggered, were not found. Choriocapillary ischemia after contusion might easily been overseen in routine examination after airbag injuries.

University Clinics of Opthalmology, Westfaelische Wilhelms-Universitaet Muenster, Domagkstraße 15, D-48129 Muenster



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