نتایج جستجو برای: vitreous
تعداد نتایج: 7050 فیلتر نتایج به سال:
Clinically in both the congenital and the acquired ocular disease, there is an acute focal chorioretinitis having its active onset of recurrence between ages 11 and 40 years old. Lesions may be single, variable in size, and are usually posterior to the equator. There is exudation into the vitreous and flare and cells in the anterior chamber. Vitreous may detach from the retina, with hemispheric...
BACKGROUND The purpose of this study was to examine the baseline echographic features in culture-positive and culture-negative endophthalmitis and to correlate these echographic features with final visual outcomes. METHODS We identified a retrospective noncomparative case series of patients with a clinical diagnosis of endophthalmitis and a baseline echographic examination between 1996 and 20...
OBJECTIVE To examine the relationship between anterior chamber (AC) sterilization and vitreous positivity rate in cases of endophthalmitis. DESIGN Retrospective case-control study. A review of all consecutive cases of endophthalmitis (N = 758) between January 1, 1999, and December 31, 2008, identified 229 matched AC and vitreous samples. Matched samples were evaluated for sensitivity and spec...
The vitreous is a complex structure whose composition and appearance change with age. Anomalous adhesions between the posterior vitreous face and the retinal surface are the cause of numerous vitreoretinal complications, while the presence of an intact posterior hyaloid provides a scaffold for vascular growth and anteroposterior traction. This review summarizes what is known about the biochemis...
INTRODUCTION Vitreous hemorrhage associated with retinopathy of prematurity is often seen in childhood, but adult onset without retinal break is rare. We describe a case of recurrent vitreous hemorrhage associated with regressed retinopathy of prematurity in a 47-year-old patient. CASE PRESENTATION A 47-year-old Japanese woman with a history of retinopathy of prematurity presented with a visu...
Purpose. To compare the stages of vitreous degeneration in patients with vitreomacular traction (VMT) and macular holes (MH). Methods. A retrospective study was performed analyzing stages of vitreous degeneration of eyes with VMT or MH using swept-source optical coherence tomography (SS-OCT) and spectral-domain optical coherence tomography (SD-OCT). An analogous review was performed on a contro...
increased vitreoretinal adhesion include lattice degeneration, some post-inflammatory lesions, areas of degenerative modelling, and some vitreous base lesions. These areas of increased adhesion may remain attached, even if the vitreous is detached elsewhere. Sebag and Balazs reported that the posterior vitreous cortex contained a round hole corresponding to the peripapillary attachment. The dia...
BACKGROUND Vitrectomy for symptomatic vitreous floaters carries significant risks. Justification of surgery is difficult, particularly in healthy eyes with normal visual acuity and without a posterior vitreous detachment. This is the first reported case of optical coherence tomography being utilized to objectively assess the impact of a vitreous opacity on the macula. CASE PRESENTATION A 37-y...
PURPOSE This study aimed to establish a method for testing Staphylococcus aureus in the vitreous of endophthalmitis with matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS), which is simple, fast, and sensitive. METHODS S. aureus at different numbers was either mixed with homogenized vitreous or inoculated in porcine eyes for culturing, followed by homo...
Vitreous fluid specimens are often used in the Montgomery County Coroner's Office as a second matrix confirmation for both cocaine and opiate analyses. In this manuscript, calibration curves constructed for both vitreous and blood were used to quantify vitreous specimens to evaluate if any matrix effects occur when measuring vitreous specimens using a calibration curve in blood. Cases that scre...
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