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Branch retinal vein

Norihiro Suzuki, Yoshio Hirano, Taneto Tomiyasu, Yuya Esaki, Akiyoshi Uemura, Tsutomu Yasukawa, Munenori Yoshida, Yuichiro Ogura
Purpose: This study evaluates the retinal hemodynamics using optical coherence tomography angiography (OCTA) before and after anti-vascular endothelial growth factor (VEGF) therapy in patients with macular edema associated with retinal vein occlusion (RVO). Methods: Twelve patients (23 eyes; mean age, 64 years) were included (eight eyes with branch RVO, four with central RVO, and 11 unaffected fellow eyes. The best-corrected visual acuity (BCVA) and central retinal thickness (CRT) were measured before and 6 months after treatment...
October 1, 2016: Investigative Ophthalmology & Visual Science
Rohan Chawla, Ravi Bypareddy, Koushik Tripathy, Satya Sudha Daggumili, Ankit Singh Tomar
Congenital retinal macrovessels (CRM) are rarely reported, aberrant, large branches of retinal vessels that can be both arteries and veins; however, they are more commonly veins that cross the horizontal raphe to either supply or drain the macula. In this brief report, the authors discuss optical coherence tomography angiography features of CRM in a 12-year-old male patient presenting with low visual acuity in the right eye since childhood. To the authors' knowledge, this is the first such report published in the literature...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
John J Wroblewski, Allen Y Hu
BACKGROUND AND OBJECTIVE: To evaluate the effects of squalamine (OHR-102; Ohr Pharmaceuticals, New York, NY) and ranibizumab (Lucentis; Genentech, South San Francisco, CA) on macular edema (ME) secondary to retinal vein occlusion (RVO). PATIENTS AND METHODS: Twenty consecutive, treatment-naïve patients with RVO-related ME received topical squalamine and intravitreal ranibizumab 0.5 mg for 10 weeks, followed by randomization to continue or discontinue squalamine...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Ramanujam Saravanan, Muthuvel Bharathselvi, Aravind C Babu, Jyothirmay Biswas, Konerirajapuram N Sulochana
PURPOSE: Eales' disease (ED), an enigmatic inflammatory disease affects peripheral retinal veins and thereby vision, in males. This study was aimed at identifying and deciphering the role of a novel 88 kDa protein reported in the serum and vitreous of patients with ED. EXPERIMENTAL DESIGN: The purified 88 kDa protein was identified by UPLC coupled ESI-QTOF-MS. The identified proteins were quantified in the serum from 20 ED patients and controls (age and sex matched), respectively by ELISA...
October 14, 2016: Proteomics. Clinical Applications
Tetsu Asami, Hiroki Kaneko, Kensaku Miyake, Ichiro Ota, Goichiro Miyake, Seiichi Kato, Shunsuke Yasuda, Takeshi Iwase, Yasuki Ito, Hiroko Terasaki
PURPOSE: We report a newly developed device to fragment thrombi in retinal vein occlusion. METHODS: The new instrument consists of a 23-gauge (G) pipe and a 37-G needle with an internal wire. A total of 40 porcine eyes were used; 20 eyes for experiments in the branch retinal vein (BRV group) and 20 eyes for experiments in the central retinal vein (CRV group). We placed 25-G 3-port trocars, and core vitrectomy was performed. Another 23-G scleral incision was performed for insertion of the needle...
September 2016: Translational Vision Science & Technology
Remya Paulose, Jay Chhablani, Chintan J Dedhia, Michael W Stewart, Ahmad M Mansour
AIM: To report the efficacy of intravitreal ziv-aflibercept injections in eyes with macular edema due to retinal vein occlusions (RVOs). METHODS: Consecutive patients with persistent or recurrent macular edema (central macula thickness >250 μm) due to RVO were enrolled in this prospective study. Study eyes received intravitreal injections of ziv-aflibercept (1.25 mg/0.05 mL) at baseline. Patients were reassessed monthly for 4 months and given additional injections pro re nata for worsening best-corrected visual acuity (BCVA), intraretinal edema or subretinal fluid seen on spectral domain optical coherence tomography, or central macular thickness (CMT) measurements >250 μm...
2016: Clinical Ophthalmology
Marc D de Smet, Jean Marie Stassen, Thijs C M Meenink, Tom Janssens, Valérie Vanheukelom, Gerrit J L Naus, Maarten J Beelen, Bart Jonckx
PURPOSE: Retinal vein occlusions (RVO) are a major cause of vision loss in people aged 50 years and older. Current therapeutic options limit the consequences of RVO but do not eliminate the cause. Cannulation of the involved vessel and removal of the clot may provide a more permanent solution with a less demanding follow-up. However, cannulation of smaller retinal veins remains challenging. This paper explores the use of ocriplasmin (recombinant plasmin without its kringles) to clear RVO, using a robotic micromanipulator...
September 28, 2016: British Journal of Ophthalmology
Alexandre Sellam, Agnes Glacet-Bernard, Florence Coscas, Alexandra Miere, Gabriel Coscas, Eric H Souied
PURPOSE: To evaluate changes of vascular flow of patients treated with intravitreal injections of anti-vascular endothelial growth factor for macular edema secondary to retinal vein occlusion (RVO) with optical coherence tomography angiography (OCTA). METHODS: Patients with RVO with macular edema and treated with intravitreal injections of anti-vascular endothelial growth factors were retrospectively evaluated. The following examinations were performed before and after treatment: best-corrected visual acuity, spectral domain optical coherence tomography, fluorescein angiography, and OCTA (Optovue, Inc)...
September 28, 2016: Retina
Marc D de Smet, Thijs C M Meenink, Tom Janssens, Valerie Vanheukelom, Gerrit J L Naus, Maarten J Beelen, Caroline Meers, Bart Jonckx, Jean-Marie Stassen
PURPOSE: To develop a methodology for cannulating porcine retinal venules using a robotic assistive arm after inducing a retinal vein occlusion using the photosensitizer rose bengal. METHODOLOGY: Retinal vein occlusions proximal to the first vascular branch point were induced following intravenous injection of rose bengal by exposure to 532nm laser light delivered by slit-lamp or endolaser probe. Retinal veins were cannulated by positioning a glass catheter tip using a robotically controlled micromanipulator above venules with an outer diameter of 80μm or more and performing a preset piercing maneuver, controlled robotically...
2016: PloS One
Renato B Cunha, Rubens C Siqueira, André Messias, Ingrid U Scott, Silvia Ligorio Fialho, Armando da Silva Cunha-Junior, Rodrigo Jorge
PURPOSE: To evaluate the safety and feasibility of a 25-gauge biodegradable implant containing 350 μg of dexamethasone (DDS-25) for the treatment of decreased vision due to macular edema associated with central or branch retinal vein occlusion. METHODS: Prospective, nonrandomized, open-label, Phase I clinical trial, including 10 patients with decreased vision (best-corrected early treatment diabetic retinopathy study visual acuity of 20/40 or worse) due to macular edema associated with central retinal vein occlusion (n = 4) or branch retinal vein occlusion (n = 6) for more than 4 months...
September 14, 2016: Retinal Cases & Brief Reports
Hasan Basri Arifoglu, Necati Duru, Orhan Altunel, Burhan Baskan, Bedirhan Alabay, Mustafa Atas
PURPOSE: The objective of this study was to evaluate subfoveal choroidal thickness (SFCT) using enhanced depth imaging optical coherence tomography (EDI-OCT) in patients with naïve branch retinal vein occlusion (BRVO) before and after intravitreal dexamethasone implant (Ozurdex®) injection. METHODS: Thirty-nine patients with unilateral BRVO and 35 healthy subjects were included in this prospective study. Choroidal thickness was evaluated by EDI-OCT at baseline and 1 month after dexamethasone implant...
July 2016: Arquivos Brasileiros de Oftalmologia
Yengwoo Son, Seungwoo Lee, Jongyeop Park
PURPOSE: Thinning of the lamina cribrosa thickness (LCT) and prelaminar tissue thickness (PT) has been observed in patients with glaucoma, and branch retinal vein occlusion (BRVO) is reportedly related to glaucoma. To test the hypothesis that thinning of the LCT and PT occurs in patients with BRVO, we investigated possible correlations of the LCT and PT in BRVO-affected eyes and fellow eyes and compared these values with age-, sex-, and underlying disease-matched eyes. METHOD: The study included 50 patients (50 eyes) with unilateral BRVO and 35 control subjects (35 eyes)...
September 14, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
Lasse Jørgensen Cehofski, Anders Kruse, Martin Bøgsted, Sigriður Olga Magnusdottir, Allan Stensballe, Bent Honoré, Henrik Vorum
Animal models of experimental branch retinal vein occlusion (BRVO) provide a unique opportunity to study protein changes directly in retinal tissue. Results from these experimental models suggest that experimental BRVO is associated with an upregulation of extracellular matrix remodeling and adhesion signaling processes. To study whether these processes could be blocked by inhibition of VEGF-A, a porcine model of experimental BRVO was combined with proteomic analyses. In six Danish Landrace pigs experimental BRVO was induced with argon laser in both eyes...
September 9, 2016: Experimental Eye Research
Pukhraj Rishi, Neha Raka, Ekta Rishi
BACKGROUND: To study potential ischemic effects of intravitreal Bevacizumab (IVB) on unaffected retina in treatment-naive eyes with macular edema secondary to branch retinal vein occlusion (BRVO) and contralateral eyes secondary to systemic absorption. METHODS AND FINDINGS: Prospective, interventional series included 27 treatment-naive eyes with BRVO and macular edema. EXCLUSION CRITERIA: Eyes with diabetic retinopathy, glaucoma, vasculitides, papilledema or systemic neurologic condition...
2016: PloS One
Orhan Altunel, Altan Göktaş, Necati Duru, Ayşe Özköse, Hasan Basri Arifoğlu, Mustafa Ataş
PURPOSE: To investigate the effect of age on dexamethasone intravitreal implant (Ozurdex®) response in macular edema secondary to branch retinal vein occlusion (BRVO). METHODS: Seventy-three eyes of 73 patients with macular edema secondary to BRVO were recruited in the study. The patients in the study were divided into the following four groups according to their ages: group 1 (<60 years), group 2 (60-69 years), group 3 (70-79 years), and group 4 (≥80 years)...
September 6, 2016: Seminars in Ophthalmology
Sandra Rilvén, Thomas Lee Torp, Jakob Grauslund
The retinal oximeter is a new tool for non-invasive measurement of retinal oxygen saturation in humans. Several studies have investigated the associations between retinal oxygen saturation and retinal diseases. In the present systematic review, we examine whether there are associations between retinal oxygen saturation and retinal ischaemic diseases. We used PubMed and Embase to search for retinal oxygen saturation and retinal ischaemic diseases. Three separate searches identified a total of 79 publications...
September 1, 2016: Acta Ophthalmologica
Stephan G Dixon, Carl T Bruce, Charles J Glueck, Robert A Sisk, Robert K Hutchins, Vybhav Jetty, Ping Wang
AIM: Our specific aim was to document the pathoetiologic importance of thrombophilia among females presenting with severe ischemic retinal vein (RVO) or retinal artery (RAO) occlusion, without typical risk factors, and to emphasize that the ophthalmologists' diagnosis of thrombophilia has important diagnostic and therapeutic downstream ramifications for nonocular thrombosis, including reproductive outcomes. METHODS: We evaluated familial and acquired thrombophilia in 60 females with RVO (central RVO, n=52; branch RVO, n=8) and 16 with RAO (central RAO, n=11; branch RAO, n=5)...
2016: Clinical Ophthalmology
Teruyo Kida, Josef Flammer, Hidehiro Oku, Seita Morishita, Masanori Fukumoto, Hiroyuki Suzuki, Katarzyna Konieczka, Tsunehiko Ikeda
BACKGROUND: Branch retinal vein occlusion (BRVO) commonly occurs at the arteriovenous crossing in the unilateral eye, and cardiovascular diseases can be risk factors of BRVO. However, the pathomechanism leading to BRVO is not yet clear. In addition to mechanical compression, the vein might locally constrict due to an altered biochemical environment, such as an increase in the concentration of endothelin-1 (ET-1). We evaluated changes in ET-1 following injection of intravitreal bevacizumab (IVB), which is the anti-vascular endothelial growth factor (VEGF) agent with the longest serum half-life, to determine the effect on BRVO-related macular edema...
2016: EPMA Journal
Masaomi Kubota, Tomohiro Shibata, Hisato Gunji, Hiroshi Tsuneoka
BACKGROUND: Although a few cases with idiopathic horseshoe-like macular tear have been reported, the mechanism remains unknown and a standard treatment has yet to be determined. OBJECTIVE: To report the outcome for a patient with idiopathic horseshoe-like macular tear who underwent vitreous surgery. CASE REPORT: A 65-year-old man with no previous injury or ophthalmic disease presented with abnormal vision in his left eye. Best-corrected visual acuity was 0...
2016: International Medical Case Reports Journal
Christian J Sanfilippo, Pradeep Prasad, David Sarraf
PURPOSE: To report a case of maternally inherited diabetes and deafness complicated by branch retinal vein occlusion and cystoid macular edema. METHODS: Retrospective case report. Multimodal imaging including spectral domain optical coherence tomography, en face optical coherence tomography, and fundus autofluorescence was preformed, and the findings are presented. FINDINGS: A 58-year-old female with a history of diabetes mellitus, hearing loss, and a previous diagnosis of age-related macular degeneration presented with decreased vision in the right eye...
August 19, 2016: Retinal Cases & Brief Reports
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