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Show 296 LITERATURE ABSTRACTS Visual Sciences, Box 8096, 660 S. Euclid Ave., St. Louis, MO 63110.] The authors performed automated visual fields with a Humphrey STATPAC program on diabetic patients with mild background retinopathy and found visual field defects in 26.3%, as well as in 15.8% of diabetics without retinopathy. They postulate that the visual field defects were a result of microangiopathic retinal changes. Lyn A. Sedwick, M. D. Critical Evaluation of the Cocaine Test in the Diagnosis of Horner's Syndrome. Kardon RH, Denison CE, Brown CK, Thompson HS. Arch Ophthalmol 1990; 108: 384- 7 ( Mar). [ Reprint requests to Dr. R. H. Kardon, Department of Ophthalmology, University of Iowa Hospital, Iowa City, IA 52242.] The authors examined and reviewed records from 119 patients with a diagnosis of Horner's Syndrome and 50 normal patients. They plotted the amount of anisocoria pre- and post- Cocaine 10% drops. The results were subjected to a statistical " odds ratio," and this determined that the amount of post- Cocaine anisocoria was the best way to determine whether or not a Horner's Syndrome was present, with ~ O. 9- mm almost always indicative of Homer's Syndrome. Lyn A. Sedwick, M. D. Gadolinium- OPTA- Enhanced Magnetic Resonance Imaging in Optic Neuropathies. Guy J, Mancuso A, Quisling RG, et al. Ophthalmology 1990; 97: 592- 600 ( May). [ Reprint requests to Dr. John Guy, Neuro- Ophthalmology Service, Box J284, JHMHC, University of Florida, College of Medicine, Gainesville, FL 32610- 0284.] The authors use gadolinium- enhanced magnetic resonance scanning and found enhancement of the optic nerve in 7 of 13 patients with optic neuritis and in 2 patients with radiation optic neuropathy. Dr. Lanning Kline provides a nice discussion of the use of this technique in patients with optic neuropathies. Llfl1 A. Sedwick, M. D. Magnetic Resonance Imaging of Optic Nerve Meningiomas. Enhancement with GadoliniumOPTA. Zimmerman CF, Schatz NJ, Glaser JS. Ophthalmology 1990; 97: 585- 91 ( May). [ Reprint requests to Dr. Joel S. Glaser, P. O. Box 016880, Miami, FL 33101.] The authors report their experience with six patients with optic nerve sheath meningioma with intracranial extension who were studied with computerized tomographic scanning and magnetic resonance scanning with and without gadolinium enhancement. In five of six patients, gadolinium gave " vivid enhancement" of the intracranial portion of the tumor; whereas, without the dye, the tumor was isointense with brain. Computerized tomography and magnetic resonance were not directly comparable in this study: The scans were done at different times and at different facilities, The authors do recommend that either study, with contrast agent, is an excellent way to delineate intraorbital and intracranial optic nerve sheath meningioma. Lyn A. Sedwick, M. D. Ophthalmic Complications of Sinus Surgery. Buus DR, Tse DT, Farris BK. Ophthalmology 1990; 97: 612- 19 ( May). [ Reprint requests to Dr. David T. Tse, Bascom Palmer Eye Institute, P. O. Box 016880, Miami, FL 33101.] The authors discussed seven patients seen over a 10- y~ ar peri. od ~ ith orbital injuries or bleeding occurnng dunng smus surgery. The most serious injury was bi. lateral o~ tic nerve transection during an endoscopic ethmOldectomy. This sobering paper, and discussion by Dr. John Shore, offers helpful treatment suggestions for these sometimes emergent situations. Lyn A. Sedwick, M. D. Intraorbital Wood. Detection by Magnetic Resonance Imaging. Green BF, Kraft SP, Carter KD, et al. Ophthalmology 1990; 97: 608- 11 ( May). [ Reprint requests to Dr. Stephen Kraft, Department of Ophthalmology, The Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8.] The authors present two cases in which mag- |
