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Show 138 LITERATURE ABSTRACTS pupillary light reflects to upper lid border in both eyes led the author to conclude that the offending pathology was a levator disinsertion in the opposite eye. Corrective surgery in the opposite eye alleviated the " pseudoretraction," which was presumably secondary to Hering's law. Lyn A. Sedwick, M. D. Bilateral Cavernous Sinus Thrombosis Due to Mucormycosis. Van Johnson E, Kline LB, Julian BA, Garcia JH. Arch Ophthalmol 1988; 106: 1089- 92 ( Aug). [ Reprint requests to Dr. L. B. Kline, Suite 555, 1600 Seventh Ave. South, Birmingham, AL 35233.] A 49- year- old man on chronic renal dialysis and deferoxamine therapy developed fever, headache, and right periorbital swelling. Computerized tomographic scanning showed right maxillary and ethmoid sinusitis. He subsequently developed unilateral then bilateral visual loss from central retinal artery occlusion and two sinus surgeries failed to demonstrate the nonseptate, branching hyphae found at autopsy. The authors postulate a relationship between the deferoxamine therapy and susceptibility to mucor infection in this patient. They also note that magnetic resonance imaging might have helped detect the cavernous sinus thrombosis, but it is hard to fault these clinicians for failing to diagnose mucor and treat appropriately premortem considering the very aggressive but unfortunately undiagnostic sinus surgery performed. Lyn A. Sedwick, M. D. Progression of Visual Defects in Ischemic Optic Neuropathy. Kline LB. Am J Ophthalmol 1988; 106: 199- 203 ( Aug). [ Reprint requests to Dr. L. B. Kline, Suite 555, 1600 7th Avenue South, Birmingham, AL 35233.] Six patients are described whose visual loss from ischemic optic neuropathy occurred progressively during 2- 6 weeks with worsening of both visual acuity and visual field. All were nonarteritic types with an initially diffusely swollen disk. The cases are nicely presented and are compared with other reported anomalous types of ischemic optic neuropathy. ' 1/ 11 A Sedwick, M. D. Optic Atrophy in Children. Repka MX, Miller NR. Am JOphthalmoI1988; 106: 191- 3 ( Aug). [ Reprint requests to Dr. M. X. Repka, Wilmer Institute, Bl35, Johns Hopkins Hospital, Baltimore, MD 21205.] This chart review study of neuro- ophthalmic and pediatric ophthalmic patients under age 18 with a diagnosis of unilateral or bilateral optic atrophy between 1978- 1987 found 218 cases. In approximately one- third, tumor was found, with inflammation ( 12%) and trauma ( 11 %) the next two most common diagnoses. Rarely was no cause discovered for the optic atrophy although previous studies have indicated a large incidence of unknown etiology. The authors recommend full workup with scanning as needed in these patients based on their findings. Lyn A. Sedwick, M. D. Echographic Characteristics of Benign Orbital Schwannomas ( Neurilemomas). Byrne BM, van Heuven WAJ, Lawton AW. Am J Ophthalmol 1988; 106: 194- 8 ( Aug). [ Reprint requests to Dr. W. A. J. van Heuven, Department of Ophthalmology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78284- 7779.] Two patients, ages 41 and 66 years, with orbital mass lesions were examined with computerized tomography. Nonspecific findings were seen in both with differential diagnosis including myositis, meningioma, schwannoma, lymphoma, hemangioma, and glioma. In both, ultrasonography suggested schwannoma, which was confirmed by surgery. Lyn A. Sedwick, M. D. Hemifacial Spasm Due to Intracranial Tumor: An International Survey of Botulinum Toxin Investigators. Sprik C, Wirtschafter JD. Ophthalmology 1988; 95: 1042- 5 ( Aug). [ Reprint requests to Dr. C. Sprik, Department of Ophthalmology, University of Minnesota Medical School, Box 493 UMHC, Minneapolis, MN 55455.] A mail survey of 180 investigators approved for botulism injection gave 122 responses regarding |