نتایج جستجو برای: posterior vitreous detachment (pvd)

تعداد نتایج: 132674  

Journal: :بینا 0
مهدی نیلی احمدآبادی m nili ahmadabadi تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم رامین اساسی r asasi تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم رضا کارخانه r karkhaneh تهران- میدان قزوین- بیمارستان فارابی- مرکز تحقیقات چشم

purpose:  to evaluate the significance of the presence of pigment granules in  the anterior  vitreous as a reliable indicator of retinal breaks in patients with acute symptomatic posterior vitreous detachment  (pvd) . methods: this cross sectional study included 209 phakic patients with acute symptomatic pvd. the patients underwent anterior vitreous examination and fundoscopy. patients with dia...

2014
Akihiro Kakehashi Mikiko Takezawa Jun Akiba

Diagnosing a posterior vitreous detachment (PVD) is important for predicting the prognosis and determining the indication for vitreoretinal surgery in many vitreoretinal diseases. This article presents both classifications of a PVD by slit-lamp biomicroscopy and of a shallow PVD by optical coherence tomography (OCT). By biomicroscopy, the vitreous condition is determined based on the presence o...

2016
Solmaz Abdolrahimzadeh Domenica Carmen Piraino Vittorio Scavella Barmak Abdolrahimzadeh Filippo Cruciani Magda Gharbiya Santi Maria Recupero

BACKGROUND The purpose of this study was to evaluate the extension and traction effects of posterior vitreous detachment (PVD) complicated with retinal tears using spectral domain optical coherence tomography (OCT) and B-scan ultrasonography. METHODS Complete ophthalmological examination, B-scan ultrasonography and spectral domain OCT were performed in patients with acute PVD and retinal tear...

Journal: :Investigative ophthalmology & visual science 1977
R Y Foos

This report reviews current knowledge of the ultrastructural features of the vitreoretinal juncture in its normal state, in eyes with posterior vitreous detachment (PVD), and in eyes with epiretinal membranes (ERM's) and then presents new concepts concerning the interrelationship of ERM's and the vitreous. Results show no vitreous residues on retinal surface following uncomplicated rhegmatogeno...

2015
Hideo Akiyama Hirotaka Itakura Tomoyuki Kashima Danjie Li Yukitoshi Shimoda Ryo Mukai Keisuke Nitta Shoji Kishi

Method: We examined 81 eyes of 58 consecutive patients diagnosed as DME. The condition of the posterior wall of the posterior precortical vitreous pocket (PPVP) was classified into 4 groups based on 12-mm horizontal and vertical scans through the macula using SS-OCT. Classifications were: Group 1, no posterior vitreous detachments (PVDs); Group 2, perifoveal PVD; Group 3, macular PVD; and Group...

Journal: :Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde 2013
Francesco Bandello Carlo La Spina Lorenzo Iuliano Giovanni Fogliato Maurizio Battaglia Parodi

The vitreous is involved in multiple diseases when an incomplete posterior vitreous detachment (PVD) occurs. An incomplete PVD can lead to several pathological conditions. Such visually threatening conditions are traditionally of exclusive surgical interest. In contrast, pharmacological vitreolysis is the effort to reduce or eliminate the pathogenetic role of the vitreous solely by means of dru...

Journal: :بینا 0
مصطفی سلطان سنجری m soltan sanjari تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات خلیل قاسمی فلاورجانی kh ghasemi falavarjani تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات محمدمهدی پرورش mm parvaresh تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مهدی مدرس زاده m modarreszadeh تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مسعود ناصری پور m naseripour تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مسیح هاشمی m hashemi تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مرضیه نجومی

purpose: to describe the association between optic disc traction and non-arteritic anterior ischemic optic neuropathy (naion). methods: eighty three eyes of 83 patients with naion were evaluated by optical coherence tomography (oct) for detecting vitreous adhesion to the optic nerve head with separation from adjacent retina (partial posterior vitreous detachment). those who were negative for su...

Journal: :The British journal of ophthalmology 2000
V Tanner D Harle J Tan B Foote T H Williamson A H Chignell

AIM To establish whether the presence of a retinal break can be predicted either by the presence of a positive Shafer's sign (pigment granules in the anterior vitreous) or symptomatology in patients presenting with an acute posterior vitreous detachment (PVD). METHODS 200 eyes of 200 phakic patients with a symptomatic PVD of less than 1 month's duration underwent documentation of symptomatolo...

Journal: :Transactions of the American Ophthalmological Society 2005
Mark W Johnson

PURPOSE To evaluate the vitreoretinal relationship in eyes with idiopathic macular disorders putatively caused by vitreomacular traction associated with early stages of age-related posterior vitreous detachment (PVD). METHODS Retrospective observational case series of 43 eyes of 40 patients diagnosed with one of several idiopathic vitreomacular conditions. Included patients had no biomicrosco...

2017
Martin Bond-Taylor Gunnar Jakobsson Madeleine Zetterberg

PURPOSE The present study aimed to describe clinical characteristics of patients with posterior vitreous detachment (PVD), to determine the prevalence of retinal tears in PVD patients, and to find predictors for retinal tears in this patient group. METHODS Retrospective analysis of medical records on patients diagnosed with PVD, retinal tears, or vitreous hemorrhage at the Department of Ophth...

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