نتایج جستجو برای: posterior vitreous detachment

تعداد نتایج: 131071  

2017
Manish Nagpal Rakesh Juneja Pranita Chaudhary

Purpose: To report case of a patient who developed intraoperative supero-nasal retinal detachment during surgery for idiopathic macular hole. Methods: Interventional Case report of a 62-year-old male who presented with macular hole in both eyes and underwent surgery for macular hole closure in RE. Results: On presentation, visual acuity was 20/60 in RE and 20/200 in LE. Optical coherence tomogr...

Journal: :Experimental eye research 2012
Tommaso Rossi Giorgio Querzoli Giacomo Pasqualitto Mario Iossa Luca Placentino Rodolfo Repetto Alessandro Stocchino Guido Ripandelli

Knowledge of vitreous motion in response to saccades is a prerequisite for understanding vitreous rheology. Purpose of present paper is to introduce Ultrasound Image Velocimetry of the human eye, measure scleral and vitreous velocity fields and test the reproducibility of the proposed technique. Twelve patients with varying diagnosis underwent Ocular Dynamic Ultrasound; scleral angular velocity...

2017
Yong-Kyu Kim Su Young Moon Kyung Mi Yim Su Jeong Seong Jae Yeon Hwang Sung Pyo Park

Purpose To evaluate the degree of psychological distress in symptomatic vitreous floater patients and to evaluate whether these psychological factors are associated with the severity of discomfort associated with vitreous floaters. Methods We recruited 61 patients with symptomatic vitreous floaters and 34 controls. The degree of posterior vitreous detachment (PVD) was evaluated using optical ...

2013
Ken-ichi Sato Shin-ichi Nishimura

Despite recent anatomical successes of surgical treatment for rhegmatogenous retinal detachment (RRD), reattachment fails in 1.1-2.5% of cases [1-3]. In addition, even in cases of reattachment, some patients continue to show poor functional results [1, 2]. Prevention of RRD is therefore undoubtedly desirable. We retrospectively examined subjective signs in patients who underwent surgery for RRD...

Journal: :American journal of ophthalmology 2015
Alexander Melamud Hubert Pham Zoey Stoumbos

PURPOSE To examine the visual outcomes of early intervention in the setting of fundus-obscuring vitreous hemorrhage (VH) presumed to be due to posterior vitreous detachment. DESIGN Retrospective comparative case series. METHODS All eyes that presented with a fundus-obscuring VH, defined as vision of 20/400 or worse and requiring a B-scan at presentation from 2003 to 2013, were evaluated. Ey...

Journal: :The British journal of ophthalmology 1981
S N Kokolakis L Bravo A H Chignell

Six cases are described in which late reattachment of detached retina occurred 9-16 months after what had been considered to be failed retinal detachment surgery. In all cases reattachment had been associated with partial restoration of vision. No cause for such reattachment can be clearly established, but it is felt that spontaneous separation of the posterior vitreous face with subsequent rel...

2011
Mikiko Takezawa Fumihiko Toyoda Chiho Kambara Hiroko Yamagami Akihiro Kakehashi

BACKGROUND To clarify the mechanism of idiopathic macular hole development, we evaluated the vitreoretinal relationship in fellow eyes of those with a macular hole and normal eyes using spectral-domain optical coherence tomography. Thirty-one fellow eyes and 34 normal volunteer eyes without a posterior vitreous detachment (PVD) were included. RESULTS WE CLASSIFIED SIX VITREOMACULAR RELATIONSH...

Journal: :Ophthalmology 2010
Matthew S Benz Kirk H Packo Victor Gonzalez Stephen Pakola Donna Bezner Julia A Haller Steven D Schwartz

PURPOSE To evaluate the safety and efficacy of a preoperative intravitreous injection of microplasmin in patients scheduled for vitreous surgery. DESIGN Phase 2, multicenter, placebo-controlled, double-masked, parallel-group, dose-ranging clinical trial. PARTICIPANTS One hundred twenty-five patients scheduled for pars plana vitrectomy (PPV), primarily for treatment of either vitreomacular t...

2016
Ayumi Ota Yoshiaki Tanaka Fumihiko Toyoda Machiko Shimmura Nozomi Kinoshita Hiroko Takano Akihiro Kakehashi

PURPOSE To clarify the relationship between variations in posterior vitreous detachments (PVDs) and visual prognoses in idiopathic epiretinal membranes (ERMs). METHODS In this retrospective, observational, and consecutive case series, we observed variations in PVDs in 37 patients (mean age, 65.7±11.0 years) with ERMs and followed them for 2 years. Three PVD types were found biomicroscopically...

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