Central retinal artery occlusion without retrobulbar hemorrhage after retrobulbar anesthesia.
Four patients had central retinal artery occlusions after retrobulbar anesthesia with lidocaine HCl was administered before photocoagulation. One of these four had two separate episodes of closure. Only one had permanent visual loss, and  none had evidence of retrobulbar hemorrhage. Each patient had a severe hematologic or vascular disorder. We think that direct trauma to the central retinal artery behind the globe, the pharmacologic or compressive effects of the injected solution, or both caused the occlusions in these patients.
D000328:Adult; D000772:Anesthesia, Local / Q000009:adverse effects; D001157:Arterial Occlusive Diseases / Q000139:chemically induced / Q000503:physiopathology*; D005123:Eye; D005260:Female; D006801:Humans; D007267:Injections / Q000009:adverse effects; D008012:Lidocaine / Q000009:adverse effects*; D008028:Light Coagulation / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000601:surgery*; D012161:Retinal Artery / Q000187:drug effects / Q000293:injuries / Q000503:physiopathology*; D012164:Retinal Diseases / Q000601:surgery
D008012:Lidocaine