Optic disk
Survey of Neovascularization on Optic Disk Region
... ABSTRACT: Diabetes is the most leading disease increases day by day. Due to diabetic condition a patient suffer from many other physical problems, out of those Diabetic retinopathy is one disease which causes the ...
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POLAR TRANSFORM FOR SEGMENTATION OF OPTIC DISK IN FUNDUS IMAGES
... As the OD region is highly pronounced in the red channel image, it is alone considered in this work for segmenting the OD. Then, speckle noise present if any, is eliminated by applying a 3X3 median filter. Blood vessels ...
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Cataract and optic disk drusen in a patient with glycogenosis and di George syndrome: clinical and molecular report
... of optic disk drusen is most likely an inherited dysplasia of the optic disk and its blood supply, which would predispose to drusen formation ...of optic disk drusen could be ...
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“Papilledema”: Neuroradiologic Evaluation of Optic Disk Protrusion with Dynamic Orbital CT
... In summary, patients with increased ICP of any origin often demonstrate optic disk swelling that initially is largely from transmitted pressure along the subarachnoid space accompanying [r] ...
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An atypical case of optic disk drusen with nerve fiber layer thickening
... the optic disk margins and elevation of the optic disk in both eyes (Figures 1A and ...the optic nerve head was observed in both eyes. Fast optic disk scans using optical ...
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Reproducibility of optic disk evaluation in supine subjects with a Heidelberg Retina Tomograph II laser tomographic scanner
... Methods: One eye was randomly selected for evaluation by HRT II in each of eleven healthy subjects. Five images were obtained by each of two experienced operators at two separate visits with the subjects in both sitting ...
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Optic Disk and Retinal Vesssel Segmentation in Fundus Images
... the optic disk is an important structural pointer for assessing the existence and sternness of retinal diseases such as diabetic retinopathy, high blood pressure, glaucoma, haemorrhages, vein closure, and ...
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Optic disk pit maculopathy: current management strategies
... the optic disk and the laser scars, which are produced and act as a barrier between the ODP and the subretinal space, preventing the entrance of fluid into the ...
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A Novel Optic Disk Segmentation in Retinal Images by using Markov Random Field Nallamothu Srinath Babu & Dr DRVA Sharath Kumar
... ( 2011 )“A New Supervised Method for Blood Vessel Segmentation in Retinal Images by Using Gray-Level and Moment Invariant Based Features”IEEE transactions on medical imaging,vol. 30, no. 1, january [4] Dal Pizzol ...
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Auto detection of Longitudinal Changes in Retinal Images for Monitoring Diabetic Retinopathy
... vessels, optic disk and the fovea as shown in ...the optic disk and fovea are used for initial correspondence and bifurcation points of blood vessels are used as landmarks for image ...
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A self regulating tool to characterize an abnormal retina from a normal retina using neural network
... low cost and time and to use for mass eye screening programs. This algorithm will constructs the network during the training itself when the system efficiency and the error function is not attained. This Automatic ...
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A case report of Epstein–Barr virus-associated retinal vasculitis: successful treatment using only acyclovir therapy
... After 3 months of therapy (Figure 7), her right visual acu- ity increased up to 20/20, intraocular pressure was 17, and no anterior chamber cells were observed. Repeat fluorescein angi- ography showed neither retinal ...
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Comparative studies of RNFL thickness measured by OCT with global index of visual fields in patients with ocular hypertension and early open angle glaucoma
... Results: A moderate correlation between RNFL thickness and indices mean sensitivity (MS), mean defect (MD) and loss variance (LV) of VF (0.547, -0.582, -0.527, respectively; P 0.001) was observed for all patients. ...
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Automatic Detection of Diabetic Retinopathy in Non dilated RGB Retinal Fundus Images
... from optic disc and have a tree shape ...diameter. Optic disk or optic nerve head is the bright yellowish disk, from which, blood vessels and optic nerve fibres ...emerge. ...
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... creating optic disk and exudates to look with same color freelance of their ...artifacts, optic disk square measure are known and therefore the exudates are shown in figure ten as black ...
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Retinal Fundus Image Segmentation using Watershed Algorithm
... The Hough transform is a method used to identify features of a particular shape within an image. The Hough transform is most typically used for the detection of regular curves such as lines, circles, ellipses, etc. The ...
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Fundus fovea localization image analysis based on automatic screening
... Fovea is one of the important features of a fundus image. Extract the different features like blood vessels, optic disk, and fovea are automatically from the retinal image is very difficult process. Fovea ...
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FPGA Implementation of Glaucoma Detection using Neural Networks
... The proposed system will be very useful to detect glaucoma efficiently so that the disease can be diagnosed in the early stages. The system does not depend on trained glaucoma specialist and expensive HRT/OCT machines. ...
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Reproducibility of retinal circulation measurements obtained using laser speckle flowgraphy-NAVI in patients with glaucoma
... the optic disk and choroid was excellent compared with the other areas of analysis (ie, the retinal artery and ...the disk and choroid (Figure ...the optic disk (GHT - : ...the ...
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Bevacizumab for the treatment of a complicated posterior melanocytoma
... the optic disk extending temporally to the adjacent retina (note the striated margins) and apparently to the inferior juxtapapillary choroid; subretinal choroidal neovascular complex (arrowhead) near the ...
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