OCCLUSION of the central retinal vein causes incomplete haemorrhagic infarction of the inner layers of the retina. Haemorrhagic infarction describes a situation in which the venous backflow of an area of tissue is interrupted. As a result the flow of blood has to stop; ischaemia and resulting increase of vascular permeability lead to retinal oedema and extensive haemorrhages. The central retina...

Many risk factors have been linked to retinal vein occlusions (RVOs) whether central or branch retinal vein occlusion. Ocular risk factors include glaucoma and hypermetropia. Controversy exists to whether short axial length is a risk factor for retinal vein occlusions. We report an extreme case that supports the latter hypothesis. A 33-year-old male presented with decreased visual acuity in the...

OBJECTIVE To explore the hemodynamic changes and their correlation with clinical presentation during central retinal vein occlusion. MATERIALS AND METHODS Retrospective, 2-center study. The medical records of 27 patients with central retinal vein occlusion were reviewed. For each patient, the plasma transit in central retinal vessels and in peripapillary choroidal vessels was analyzed using i...

BACKGROUND Cilioretinal artery occlusion rarely results in neovascular glaucoma, especially in cases of extensive cilioretinal infarction and combined retinal vascular occlusion. CASE A 62-year-old man with diabetes mellitus and essential hypertension showed a visual acuity of counting fingers, retinal whitening temporal to the optic disc with mild dilation and tortuosity of the retinal veins...

Background: Retinal vein occlusions are one of the most common form of retinal vascular disorders and could lead to vision loss due to macular edema, macular ischemia and sequelae from neovascularization. Anti-venous endothelial growth factor (anti-VEGF) treatment is the choice strategy of treatment for patients with macular edema secondary to central retinal vein occlusion (CRVO). There is an ...

BACKGROUND Patients with initially low visual acuity were excluded from the therapy approval studies for retinal vein occlusion. But up to 28 % of patients presenting with central retinal vein occlusion have a baseline BCVA of less than 34 ETDRS letters (0.1). The purpose of our study was to assess visual acuity and central retinal thickness in patients suffering from central retinal vein occlu...

Central retinal vein occlusion in young people is a rare entity. Here we present two cases of central retinal vein occlusion in young women using oral contraceptive pills. We found no other systemic problems and all routine investigations were within normal limits. The cases were managed with further avoidance of oral contraceptives and intravitreal injections of Bevacizumab (Avastin) to reduce...

AIMS AND OBJECTIVES To determine the association of Primary glaucoma with retinal vein occlusion. METHODOLOGY A prospective cross-sectional study was carried out in B.P. Koirala Lions Centre for Ophthalmic Studies from April 2002-July 2003. All diagnosed cases of retinal vein occlusion were evaluated in detail for the presence of primary glaucoma. Detailed history was taken. Best corrected vi...

Human retina consists of repeating pattern of arteries and veins. This repeating pattern is known as Fractals. Fractal Dimension is the quantity which is to be determined for analyzing disorder in retina using fractal analysis. There are two disorders of retina which leads to complete vision loss. They are Occlusion and Diabetic Retinopathy. Occlusion is due to arteries crossing over vein leadi...

PURPOSE To evaluate the effects of vitrectomy and internal limiting membrane peeling for treatment of macular edema secondary to retinal vein occlusion (RVO). METHODS Nine cases of visual loss due to macular edema caused by central retinal vein occlusion or branch retinal vein occlusion underwent pars plana vitrectomy with removal of the preretinal hyaloid, peeling of the internal limiting me...