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Use of mode-locked YAG laser in the treatment of vitreous strands and membranes Arata Yoneya 1 , Takayuki Tanaka 1 , Kenji Tokui 1 , Koichi Shimizu 1 1Dep. of Ophthalmol., Gunma Univ. Sch. of Med. pp.919-924
Published Date 1985/7/15
DOI https://doi.org/10.11477/mf.1410209502
  • Abstract
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Mode-locked YAG laser was used in severing vitreous strands or membranes in 16 eyes. The casesincluded proliferative retinopathy (6 eyes), branch retinal vein occlusion ( 3 ), acute retinal necrosis ( 1 ) and others. While attempting to sever vitreal mebranes, a number of consecutive shots were appli-ed to create a tiny hole. This procedure was repeat-ed until a row of holes were formed transversing the membrane at a right angle to the force of stretch. These holes were then made to merge so as to cut the whole membrane at the desired site.As a standard setting, we used the power output of 4 m J for each burst. A total of 71 to 1,272 bursts, average 560, were necessary to sever a membrane or a strand in the present series. The sites of vitreous strands or membranes to be treated were located, in the majority of cases, either in the middle or posterior vitreous. The distance between the site of laser application and the retinawas :imm or more. As a major complication, he-morrhages occurred from the severed portion of fibrovascular membrane in 1 eye. This hemorrhage was temporary and disappeared without sequelae when examined 24 hours later. Retinal burn, simi-lar in appearance as in conventional argon laser treatment, developed in 1 eye. No further com-plications were observed throughout the series.


Copyright © 1985, 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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