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Analysis of eye lesions induced by organophosphorus gas (sarin) poisoning in Matsumoto Masahiko Nohara 1 , Michinori Nakamura 2 , Kimitoshi Nakamura 2 , Kyoichiro Nonaka 3 , Takahisa Nonaka 3 , Tadashi Hatakeyama 4 , Shigenobu Hirabayashi 5 , Yoshihide Koide 6 , Tatsuko Koide 6 , Takaharu Miyazawa 7 , Shohei Mimura 8 , Katsuzo Segawa 9 1Dept of Ophthalmol, Maruko Chuoh General Hosp 2Nakamura Eye Clinic 3Nonaka Eye Clinic 4Hatakeyama Eye Clinic 5Hirabayashi Eye Clinic 6Koide Eye Clinic 7Dept of Ophthalmol, Toyoshina Red Cross Hosp 8Mimura Eye Clinic 9Dept of Ophthalmol, Shinshu Univ Sch of Med pp.769-774
Published Date 1996/5/15
DOI https://doi.org/10.11477/mf.1410904862
  • Abstract
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Mass poisoning by organophosphorus gas, sarin, took place on June 27, 1994. We retrospectively evaluated the subjective symptoms and clinical findings from the clinical records in 52 victims. Patients complained of darkness, visual blurring, ocular pain, hyperemia and miosis in addition to systemic symptoms as running nose, nausea, headache and sore throat. Clinical features included miosis, conjunctival hyperemia, constricted visual field and low intraocular pressure. The visual acuity and critical flicker frequency were almost normal. The pupil diameter was 1.0 to 2.0 mm on the day of exposure, improved gradually from the third day on, and returned to normal after one week. Conjunctival hyperemia and constricted visual field perisisted for 3 days after the exposure.


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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