Search results for "Central retinal vein"
showing 10 items of 20 documents
The Spectrum of Ocular Manifestations in Patients with Waldenström's Macroglobulinemia.
2021
Purpose: To investigate the ocular manifestations in 91 Waldenstrom's macroglobulinemia (WM) patients.Methods: Retrospective, cross-sectional, observational analysis.Results: Ocular impairments, detected in 19 patients, included flame-shaped hemorrhages, venous sausaging, papilledema, macular detachments, or central retinal vein occlusion in 16 patients; paraproteinemic keratopathy in 2; and a CANOMAD syndrome in 1. Best-corrected visual acuity was ≥0.5 logMAR units in 11 of 38 eyes. Intraocular pressure was increased in seven eyes. Genetic analysis in seven patients showed a mutation in the MYD88 gene in six patients and a nonsense mutation in the CXCR4 gene in five patients. Plasmapheresi…
Retrobulbar anesthesia complicated by combined central retinal vein and artery occlusion and massive vitreoretinal fibrosis.
1995
Retrobulbar anaesthesia is routine procedure in ocular surgery. Complication are infrequent but often severe, involving both retina and the optic nerve. we report a case of combined central retinal vein and artery occlusion, secondary to retrobulbar anaesthesia, which evolved into retinal ischemia and Vitreoretinal fibrosis. This is the first time to our knowledge that such a dramatic evolution of post traumatic retinal occlusion has been reported.
Color Doppler Imaging of Arterial Blood Flow in Central Retinal Vein Occlusion
1994
Purpose: The hemodynamics of the retrobulbar arterial circulation of patients with central retinal vein occlusion were evaluated in order to better understand the pathophysiology of this disease. Methods: Color Doppler imaging was used to measure the peak systolic velocity and vascular resistance (pulsatility index) in the retrobulbar arteries of involved eyes and clinically healthy fellow eyes of patients with central retinal vein occlusion and in the control eyes of age- and sex-matched healthy volunteers. Results: Average peak systolic velocity was significantly lower and average vascular resistance was significantly higher in the central retinal artery of involved eyes of patients with …
Optociliary veins and central retinal vein occlusion.
1993
In a follow up of 94 patients with central retinal vein occlusion (CRVO) whose onset had taken place less than 1 year earlier, optociliary veins (OCVs) were found in 7.4% at first examination. Among the 79 eyes in which the fundus of the eye was very visible after a follow up of more than 1 year OCVs were found in 30.4%, showing a late development of OCVs in many cases of CRVO. No difference was found in the occurrence of OCVs between non-ischaemic and ischaemic forms of CRVO. The visual acuity of the eyes with CRVO that developed OCVs was not significantly different from the visual acuity of the eyes without OCVs. Thus, the presence of OCVs in CRVO does not seem to be associated with bette…
Serous Detachment of the Retina: A Complication of Branch Retinal Vein Stenosis
2005
The author reports a case of serous detachment of the retina, which has developed in an eye with veno-venous collaterals, secondary to stenosis of a branch of the central retinal vein near the optic disc. This complication has not previously been described in this retinal vascular obstructive disease.
Color Doppler imaging of the eye and orbit A synopsis of a 400 case experience
2009
Color Doppler imaging (CDI) is a recent advance in ultrasonography that allows simultaneous two-dimensional imaging of structure and blood flow. Doppler information is superimposed in color over a conventional gray-scale ultrasound image. Using this technique we have examined 400 eyes. The central retinal artery, posterior ciliary arteries, ophthalmic artery, the central retinal vein and the vortex veins could be located in all normal eyes. Using the color image as a guide, Doppler spectral analysis is used for quantitative assessment of blood flow velocity in these vessels. We also studied patients with intraocular tumors, arterial and venous retinal occlusions, orbital vascular anomalies …
Radiäre Optikusneurotomie (RON) bei retinalen Zentralvenenverschlüssen
2007
Background Compression in the lamina cribrosa is discussed as a reason for central retinal vein occlusion. Radial optic neurotomy should release the pressure and increase venous blood outflow. Patients and methods In a clinical trial 27 eyes with central retinal vein occlusion (22 eyes with clinical ischaemia, 5 eyes with continuous disc oedema and visual acuity below 4/10) underwent surgical decompression by vitrectomy and radial optic neurotomy. During surgery the intravenous pressure in the central vein was tested by infusion dynamometry before and right next to the incision. Follow up-time minimally was 1.5 years. Results Infusion dynamometry demonstrated a decrease of the central vein …
Retinal vein occlusion: current treatment.
2010
Retinal vein occlusion (RVO) is a pathology noted for more than 150 years. Although a lot has been written on the matter, it is still a frequent condition with multifactorial etiopathogenesis with many unclear aspects. The RVO pathogenesis has varied systemic and local implications that make it difficult to elaborate treatment guidelines. The management of the patient with RVO is very complex and a multidisciplinary approach is required in order to identify and correct the associated risk factors. Laser therapy remains the gold standard in RVO, but only modest functional improvement has been shown in branch retinal occlusion forms. Multicenter studies of intravitreal drugs present them as a…
Intravitreal Pegaptanib in Ischemic CRVO Refractory Exudative Macular Detachment
2012
Abstract Recent literature data reported evidence of the visual and/or anatomical benefits of all clinically available anti-VEGF drugs for the treatment of macular edema (ME) following Central Retinal Vein Occlusion (CRVO), up to 1-year followup. There are no randomized clinical trial data on anti-VEGF agents in ischemic CRVO-ME and the use of anti-VEGF agents to treat this condition. A 73-year old caucasian man, with a medical history of diabetes and systemic hypertension and an ophthalmic history of ischemic CRVO with cystoid macular edema was referred to our division on January 2011. The ophthalmic examination showed in right eye a visual acuity of 20/2000, a C2N1 cataract and an exudati…
Vision-related function in the COPERNICUS and GALILEO trials
2014
Purpose To examine the impact of intravitreal aflibercept (IVT-AFL) injection on the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ) in the COPERNICUS and GALILEO trials. Methods Patients (pts) with macular oedema secondary to central retinal vein occlusion received IVT-AFL 2 mg (IVT-AFL 2q4) or sham monthly for 24 weeks. After Week 24 (W24) in COPERNICUS all pts were eligible to receive IVT-AFL based on visual and anatomical outcomes (IVT-AFL 2q4+PRN, sham+IVT-AFL PRN). In GALILEO, sham-treated pts received sham tx until W52. The NEI VFQ was administered at baseline (BL), W24 and W52. Total and subscale scores were compared between groups. W24 data were integrated an…