نتایج جستجو برای: retinal vessel occlusion
تعداد نتایج: 204184 فیلتر نتایج به سال:
1 Greenberg PB, Martidis A, Rogers AH, et al. Intravitreal triamcinolone acetonide for macular oedema due to central retinal vein occlusion. Br J Ophthalmol 2002;86:247–8. 2 Ip MS, Kumar KS. Intravitreous triamcinolone acetonide as treatment for macular edema from central retinal vein occlusion. Arch Ophthalmol 2002;120:1217–19. 3 Jonas JB, Kreissig I, Degenring RF. Intravitreal triamcinolone a...
Glaucoma is a disease affected by an eye which results normally and impaired by the normal optic nerve. It is caused by increase in the pressure which utilize across the outer coats of the eye ball. Glaucoma primarily causes a retinal vessel occlusion and then it alters the optic disc by getting higher the cup size. The blindness will lead to causes and it will detect some problems and treated ...
Purpose Retinal ischemia has been traditionally assessed by fluorescein angiography, visualizing perfused vessels. However, this method does not provide any information about nonperfused vessels, and although it is often assumed that vessels in ischemic areas regress, we know little about how nonperfused retinal vessels change over time. Here, we aim to learn more about the long-term fate of no...
Correspondence address: Abdullah Kaya. GATA Haydarpasa Training Hospital Department of Ophthalmology Istanbul Turkey E-mail: [email protected] Dear Editor; We read the article “Unilateral central retinal artery occlusion as the sole presenting sign of Susac syndrome in a young man: case report” written by Apóstolos-Pereira et al., with interest. They represented a patient who was diagnos...
Abbreviations: AD, maximum amplitude in the dark period; AL, minimum amplitude in the light period during FO measurement; BRVO, branch retinal vein occlusion; CRAO, central retinal arterial occlusion; CRVO, central retinal vein occlusion; dfFO, average difference in μV between AD and AL during the FO measurement; df/mFO, percentage ratio of the dfFO to the average amplitude of AD + AL (m); EOG,...
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...
PURPOSE Retinal vessel attenuation is a key finding in the diagnosis of retinitis pigmentosa (RP), but there have been no studies to determine whether quantitative measurement of this retinal sign is useful. We aimed to investigate retinal vessel caliber and its relationship with the severity of RP. METHODS This is a cross-sectional study based on 74 patients (145 eyes) with RP who had visual...
The separation of the retinal vessel network into distinct arterial and venous vessel trees is of high interest. We propose an automated method for identification and separation of retinal vessel trees in a retinal color image by converting a vessel segmentation image into a vessel segment map and identifying the individual vessel trees by graph search. Orientation, width, and intensity of each...
A seventy-six-year-old lady with poor vision of the left eye due to previous retinal detachment presented with acute visual loss of her right eye secondary to central retinal artery occlusion. Clinical examination showed a pale right optic disc, macular edema, and a cherry red spot. Optical coherence tomography done four hours after onset showed right acute cystoid macular edema and diffuse inn...
A 25-year-old woman noticed floaters in her left visual field since a few days earlier. She was positive for the heterozygous A1298C mutation on MTHFR gene, betafibrinogen gene –455G/A polymorphism, and 4G/5G plasminogen activator inhibitor-1 (PAI-1). Blood test and a systemic workup did not reveal any abnormality. Blood pressure was 120/80 mmHg. Visual acuity was 20/20 in both eyes. Following ...
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