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Show LITERATURE ABSTRACTS 295 encephalography and Clinical Neurophysiology, NN 283 University of Washington Medical Center SB- lO, 1059 NE Pacific St, Seattle, WA 98195.) Four patients with autosomal dominant cerebellar ataxia had mildly to moderately decreased visual acuity and were found to have cone dysfunction by electroretinography. The authors postulate that previous descriptions of " retinal degeneration" with hereditary ataxias are probably similar cases of selective cone dystrophy. Lyn A. Sedwick, M. D. Botulism Treatment of Strabismus Following Retinal Detachment Surgery. Scott AB. Arch Ophthalmol 1990; 108: 509- 10 ( Apr). [ Reprint requests to Dr. A. B. Scott, Smith- Kettlewell Eye Research Institute, 2232 Webster St, San Francisco, CA 94115.) The author treated 20 patients with strabismus after retinal detachment repair with botulism. Several had had previous strabismus surgery. Of these 20, 12 had re- establishment of fusion in primary position and three had " partial elimination of diplopia." The author recommends this therapy for post retinal detachment in patients who are at risk for anterior segment ischemia or when muscle surgery is undesirable for other reasons. Lyn A. Sedwick, M. D. Tonic Upgaze In Infancy. Mets M., Arch Opthalmol 1990; 108: 482- 3 ( Apr). [ No information about reprints given.) The case report of a baby with sustained episodes of upgaze that resolved by 4 months of age is reported. He was subsequently found to have an esotropia and amblyopia successfully treated with patching and surgery. The nonpathologic nature of these upgaze episodes in infants is stressed. Lyn A. Sedwick, M. D. A Primate Model of Anterior Segment Ischemia After Strabismus Surgery. The Role of the Conjunctival Circulation. Fishman PH, Repka MX, Green WR, 0' Anna SA, Guyton DL. Ophthalmology 1990; 97: 456- 61 ( Apr). [ Reprint requests to Dr. M. X. Repka, The Wilmer Institute, BI- 35, The Johns Hopkins Hospital, Baltimore, MD 21205.) Cynomolgus monkeys had all four rectus muscles cut from the globe with either conjunctival incision ( 360° peritomy) or fornix- based incisions. All eyes displayed signs of anterior segment ischemia, but eyes operated via conjunctival incision consistently had more severe changes. One monkey with three rectus muscles tenotomized followed 1 month later by tenotomy on the fourth rectus muscle done in one eye via conjunctival incision and the other via fornix incision had the best result. The authors conclude that leaving the perilimbal conjunctiva intact reduces the risk of anterior segment ischemia in multiple muscle procedures, presumably from collateral blood flow to the anterior segment. Lyn A. Sedwick, M. D. Bilateral Orbital Involvement in Fatal Giant Cell Polymyositis. Kattah JC, Zimmerman LE, Kolsky MP, Chrousos G, Chavis R, Jaffe G, Manz HJ. Ophthalmology 1990; 97: 520- 5 ( Apr). [ Reprint requests to Dr. J. C. Kattah, 3800 Reservoir Rd., Washington, DC 20007.) A 37- year- old woman developed subacute bilateral painful proptosis with unilateral lid edema. Computerized tomographic scanning showed enlarged extraocular muscles, without true sparing of tendinous insertions, and thyroid function tests were normal. She responded to corticosteroid therapy and was thought to have thyroid eye disease in spite of the nonclassic presentation and scan. Testing for Trichinella was negative as were two Tensilon tests. Other symptoms ensued, and 18 months later she died of cardiac arrhythmia. At autopsy, she had granulomatous myositis involving extraocular muscles, laryngeal, pharyngeal, and cardiac muscle. Lyn A. Sedwick, M. D. Visual Field Defects in Patients with InsulinDependent and Noninsulin- Dependent Diabetes. Trick GL, Trick LR, Kilo C. Ophthalmology 1990; 97: 475- 82 ( Apr). [ Reprint requests to Dr. G. L. Trick, Department of Ophthalmology and I Cli" Neuro- ophthalmol. Vol. 10. No. 4. 1990 |