نتایج جستجو برای: retinal vascular necrosis

تعداد نتایج: 378478  

Journal: :The British journal of ophthalmology 1978
N J Young A C Bird

In this paper 4 patients are described who had bilateral symmetrical confluent retinal swelling followed by apparent necrosis and sloughing of the retina into the vitreous. The disease was accompanied by signs of uveitis and the clinical appearance suggested inflammation rather than infarction as the pathogenic mechanism. No systemic abnormalities were found by which the aetiology could be iden...

Journal: :The British journal of ophthalmology 1982
P Sternberg D L Knox D Finkelstein W R Green R P Murphy A Patz

Six patients with the acute retinal necrosis (ARN) syndrome are described. Ophthalmoscopic examination demonstrated occlusion of peripheral retinal vessels and patchy areas of peripheral retinal whitening spreading rapidly over a period of weeks to markedly decreased vision. In four patients, the disease was bilateral. Histologic examination of vitrectomy specimens from three cases and one enuc...

2014
Zubair Idrees Ian Dooley Brian Power Aaron Yeung Marie Hickey Dwyer

Background: Oxidized low-density lipoprotein (OX-LDL) is believed to be a key trigger factor in the genesis of atherosclerosis. It has been postulated that it can activate inflammatory mediators such as high sensitive C-reactive protein (hs-CRP), interleukin 6 (IL6), and tumour necrosis factor (TNF). These mediators have been demonstrated to have an atherogenic effect. Aims: This pilot study ex...

Journal: :journal of current ophthalmology 0
فدرا حاجی زاده fedra hajizadeh هوشنگ فقیهی hooshang faghihi محمد ریاضی اصفهانی mohammad riazi esfahani

purpose : to report a patient with branch retinal vein occlusion (brvo) and serologic evidence of primary cytomegalovirus (cmv) infection case report : we have reported a 27-year-old male with a complaint of sudden decrease in right eye vision starting a few days before. results : immunoglobulin g (igg) seroconversion indicated primary cmv infection. conclusion : involvement and obstruction of ...

Journal: :Diabetes care 2007
Thanh Tan Nguyen Jie Jin Wang Tien Yin Wong

T he retinal vasculature can be viewed directly and noninvasively, offering a unique and easily accessible “window” to study the health and disease of the human microcirculation in vivo. In the last decade, advances in digital retinal photography and imaging techniques have allowed precise characterization of subtle retinal vascular changes in large populations. These retinal changes can be bro...

Journal: :Postgraduate medical journal 1988
M D Sanders E M Graham

Evidence is now accumulating on both clinical and experimental grounds that the retina is an a priori source of inflammatory activity. Reactive inflammation in the retina may produce many of the clinical signs previously ascribed to uveal inflammation. Autoimmune mechanisms are probably responsible for the majority of cases of retinal vasculitis. Autoimmune retinal vasculitis occurs without oth...

H. Ashraf, Masoomeh Eghtedari

Ocular involvement in lymphoma is a relatively rare condition that can result from a primary intraocular lymphoma or an intraocular manifestation of systemic lymphoma. Lymphoma manifestations frequently masquerade as other more benign intraocular conditions including allergic or infectious conjunctivitis, uveitis, multiple evanescent white dot syndrome, acute retinal necrosis, or herpetic retin...

Journal: :journal of current ophthalmology 0
فدرا حاجی زاده fedra hajizadeh محمد ریاضی اصفهانی mohammad riazi esfahani هوشنگ فقیهی hooshang faghihi مهدی خانلری mehdi khanlari

purpose : to study optical coherence tomography (oct) findings in high myopic patients with the history of uncomplicated cataract surgery methods : the sample included 34 eyes of 24 highly myopic patients with an axial length (al) of 26 mm or more and a spherical equivalent (se) of 8.0 diopter (d) or more who had uncomplicated phacoemulsification cataract surgery. octs were done in multiple sec...

2016
Shirish Dongare Suresh K. Gupta Rajani Mathur Rohit Saxena Sandeep Mathur Renu Agarwal Tapas C. Nag Sushma Srivastava Pankaj Kumar

PURPOSE Diabetic retinopathy is a common microvascular complication of long-standing diabetes. Several complex interconnecting biochemical pathways are activated in response to hyperglycemia. These pathways culminate into proinflammatory and angiogenic effects that bring about structural and functional damage to the retinal vasculature. Since Zingiber officinale (ginger) is known for its anti-i...

Journal: :Molecules 2014
Hak Sung Lee Jae-Hyun Jun Eun-Ha Jung Bon Am Koo Yeong Shik Kim

Epigalloccatechin-3-gallate (EGCG) is the main polyphenol component of green tea (leaves of Camellia sinensis). EGCG is known for its antioxidant, anti-inflammatory, antiviral, and anti-carcinogenic properties. Here, we identify EGCG as a new inhibitor of ocular angiogenesis and its vascular permeability. Matrix metalloproteinases (MMPs) and vascular endothelial growth factor (VEGF) play a key ...

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