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find Keyword "视网膜穿孔/病因学" 11 results
  • 激光意外损伤导致的黄斑病变三例

    Release date:2016-09-02 05:41 Export PDF Favorites Scan
  • Histological observations of the macular epiretinal membranes from pathological myopic eyes with macular hole

    Objective To investigate the histological changes of the internal limiting membrane (ILM) in pathological myopic eyes, and the relationships between those changes and the formation of macular hole.Methods The clinical data of 34 patients (34 eyes)with pathological myopia and macular hole, who had undergone vitrectomy were retrospectively analyzed. All the patients had a diopter over -6.00 D, their ocular axial length ranged from 26.00 to 33.12 mm with an average of 27.74 mm. There were 5 eyes without retinal detachment (macular hole group)while the other 29 eyes all had posterior retinal detachment(RD group). A standard threeport pars plana vitrectomy was performed in all eyes. The existence of Weiss ring was considered as the sign of posterior vitreous detachment. The epiretinal membranes from 34 eyes and ILM specimens from 19 eyes were stained by hematoxylineosin (HE) and acetate uranyl acetatelead citrate, and then investigated under optical microscope and transmission electron microscope. Results The Weiss ring was observed in 5 eyes during the surgery, multilayer of vitreous tissue resides on the retinal surface in 24 eyes. The results of optical microscope showed that the epiretinal membranes were composed of vitreous collagen, astrocytes and extracellular matrixes. The results from transmission electron microscope showed a sandwich structure (ILMvitreous collagencells) in 5 eyes, and ILM damage, surface traction and astrocytes migration in 1 eye. Conclusions Splitting of posterior surface of vitreous and surface structure change of ILM are the major mechanisms for the formation and progression of macular holes, and even retinal detachment in high myopic eyes.

    Release date:2016-09-02 05:43 Export PDF Favorites Scan
  • 双眼Coats病合并黄斑裂孔一例

    Release date:2016-09-02 06:01 Export PDF Favorites Scan
  • 兄弟二人裂孔源性视网膜脱离

    Release date:2016-09-02 06:11 Export PDF Favorites Scan
  • 并发于玻璃体视网膜显微手术中的医源性视网膜裂孔

    Release date:2016-09-02 06:11 Export PDF Favorites Scan
  • IATROGENIC RETINAL BREAKS IN MICRO-VITREORETINAL SURGERY

    PURPOSE:To investigate the cause and treatment of iatrogenic retinal breaks(lRB)in microvitreoretinal surgery. METHODS:The causes and treatments of 40 iatrogenie retinal breaks of 24 cases in micro-vitreoretinal surgery from July1994 to March 1996 in our department were analyzed retrospectively. RESULTS:40 IRB were found in 24 eyes,among them there were 16 eyes of proliferative vitreoretinopathy(PVR),5 eyes of taumatic PVR and 3 eyes of tractional retinal detachment, The treatments of IRB included scleral cryotherapy ,silicone band buckling,endodiathermy,intraocular tamponade and postoperative argon laser. The IRB of inferior retina and posterior Io scleral buckling acounded for 70% and 92% respectively. The total retinal and macular attachment were 17 eyes and the visual acuity of 19 eyes improved to 0.02 or better during the mean follow up periods of 5 months. CONCLUSION:The IRB is a severe complication in micro-vitrecretinal surgery and has to be obliterated either intraoperatively or postoperatively. (Chin J Ocul Fundus Dis,1997,13: 19-21 )

    Release date:2016-09-02 06:12 Export PDF Favorites Scan
  • 眼球挫伤致巨大视网膜撕脱性裂孔一例

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  • 视盘小凹合并黄斑裂孔一例

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  • 先天性视盘小凹合并黄斑病变的临床及光相干断层扫描图像特征

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  • 孔源性视网膜脱离巩膜外垫压手术后出现黄斑裂孔二例

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