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Incidence of visual field defect following vitrectomy for macular hole using different types of air-infusion equipment Hitoshi Ishigooka 1 , Yuki Mawatari 1 , Kuniko Ogawa 1 , Tadashi Hashimoto 1 , Nobuchika Ogino 1 , Tadashi Hasumura 2 , Akira Hirata 2 , Akira Negi 2 , Joe Akita 3 , Hiroo Terauchi 3 , Seiji Demizu 4 , Hideyuki Kurihara 5 , Kazunori Atsumi 6 , Miyo Matsumura 7 1Department of Ophthalmology, Kyoto Katsura Hospital 2Dept of Ophthalmol, Kumamoto Univ Sch of Med 3Nagata Eye Clinic 4Shinjyo Eye Clinic 5Kurihara Eye Clinic 6Dept of Ophthalmol, Kamiiida Sogo Daiichi Hosp 7Dept of Ophthalmol and Visual Sci, Kyoto Univ Gradu Sch of Med pp.563-567
Published Date 2000/4/15
DOI https://doi.org/10.11477/mf.1410906773
  • Abstract
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We reviewed 270 eyes which underwent successful vitreous surgery for macular hole in seven institutions. Either of 3 different instruments was used : GFX (Alcon), Accuras (Alcon) or VT-5000 (Nidek) . Postoperative visual field defect developed in 37 eyes (13.7%) . Its incidence varied by up to 4 times among institutions. Visual field defect occurred at the rate of 18.3% with GFX, 4.5% with Accuras, and 10.0% with VT-5000. Its incidence was not related with the humidity of the infusion air (p < 0.1) . The incidence was significantly greater when the perfusion pressure was set at 50 mmHg or more than at 30 mmHg or less (p < 0.05) . The findings show that the perfusion pressure ought to be kept below 30 mmHg to prevent visual field defect. It is suspected that GFX may have the inherent drawback that the prefusion pressure is kept constant.


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