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Optic Nerve Head

Glaucomatous optic nerve head alterations in patients with chronic heart failure

Glaucomatous optic nerve head alterations in patients with chronic heart failure

... the optic nerve found in patients with CHF because cardiovascular disease is an important risk factor for thrombotic ...the optic nerve head in patients with chronic heart ...

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Increased expression of oxyproteins in the optic nerve head of an in vivo model of optic nerve ischemia

Increased expression of oxyproteins in the optic nerve head of an in vivo model of optic nerve ischemia

... Increased levels of ET-1 have been known to lead to a reduction in blood flow in both the choroid and the optic nerve head [19]. ET-1 constricts vessels both dir- ectly and indirectly by increasing ...

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The influence of corneal astigmatism on retinal nerve fiber layer thickness and optic nerve head parameter measurements by spectral-domain optical coherence tomography

The influence of corneal astigmatism on retinal nerve fiber layer thickness and optic nerve head parameter measurements by spectral-domain optical coherence tomography

... Germany), optic nerve head evaluation was performed with a 90-D lens, and peripapillary RNFL thickness and ONH parameters were measured with the Cirrus HD OCT (Cirrus HD OCT; Carl Zeiss Meditec, ...

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Optic nerve head analysis of superior segmental optic hypoplasia using Heidelberg retina tomography

Optic nerve head analysis of superior segmental optic hypoplasia using Heidelberg retina tomography

... the optic nerve head and retinal nerve fiber layer were calculated based on the mathematical model derived from normal and glaucoma- tous eyes in ...

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Diagnostic Methods for Optic Nerve Head and Retinal Nerve Fiber Evaluation in Glaucoma

Diagnostic Methods for Optic Nerve Head and Retinal Nerve Fiber Evaluation in Glaucoma

... and Optic nerve head (ONH) ...7]. Optic disc and Retinal nerve fiber layer (RNFL) assessment can be performed according to five rules that include the evaluation of optic disc ...

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Segmentation of Optic Nerve Head for Glaucoma Detection using Fundus images

Segmentation of Optic Nerve Head for Glaucoma Detection using Fundus images

... to optic nerve ...vessels, optic cup, optic disc and macula for a normal ...the optic disc is about ...the optic nerve head is known as the cup and is smaller than ...

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Optic Nerve Head Drusen, Myopia and Ocular Hypertension: A Case Report

Optic Nerve Head Drusen, Myopia and Ocular Hypertension: A Case Report

... respectively. Optic discs were bilateral pale with indistinct and scalloped margins without ...both optic discs, representative of optic disc ...findings. Optic nerve head drusen ...

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Contrast Enhanced 3D FLAIR Imaging of the Optic Nerve and Optic Nerve Head: Novel Neuroimaging Findings of Idiopathic Intracranial Hypertension

Contrast Enhanced 3D FLAIR Imaging of the Optic Nerve and Optic Nerve Head: Novel Neuroimaging Findings of Idiopathic Intracranial Hypertension

... the optic nerve and optic nerve head on MR imaging: 0 ⫽ normal (A), 1 ⫽ mild hyperintensity of the ON without involvement of the ONH (arrows, B), 2 ⫽ moderate hyperintensity of the ONH ...

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Influence of automated disc margin determination on Stratus OCT optic nerve head measurements

Influence of automated disc margin determination on Stratus OCT optic nerve head measurements

... 2. Wollstein G, Binnun E, Ben-Yosef N, Rozenman Y. Retinal thickness ana- lyzer (RTA) imaging of a model eye and the optic nerve head. Comparison with Heidelberg Retina Tomograph measurements. In: ...

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Optic Nerve Head Image Analysis for Glaucoma Progression Detection

Optic Nerve Head Image Analysis for Glaucoma Progression Detection

... Photographs were obtained annually for all of the patients using a simultaneous stereoscopic camera (3-Dx; Nidek Co., Ltd., Gamagori, Japan) after maximum pupil dilation. For each eye, the photographs obtained at ...

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Network analysis of human glaucomatous optic nerve head astrocytes

Network analysis of human glaucomatous optic nerve head astrocytes

... strong activation of a subset of AP-1 regulated targets shown in Table 5. Co-activation of transcription factors AP-1 and NF-  B in glaucomatous ONHAs is consistent with their parallel regulation via TLR receptors and ...

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Optic nerve head topography and retinal structural changes in eyes with macrodisks: a comparative study with spectral domain optical coherence tomography

Optic nerve head topography and retinal structural changes in eyes with macrodisks: a comparative study with spectral domain optical coherence tomography

... retinal nerve fiber layer (pRNFL) thicknesses were evaluated by ONH and automatically calculated by OCT using existing ...the optic disk as the end of the retinal pigment ...

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Macular ganglion cell asymmetry for detecting paracentral scotoma in early glaucoma

Macular ganglion cell asymmetry for detecting paracentral scotoma in early glaucoma

... retinal nerve fiber layer (cpRNFL) thickness, macular ganglion cell-inner plexiform layer (GCIPL) thickness, and optic nerve head (ONH) parameters with Cirrus spectral domain optical coherence ...

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Optic Disc Size in Glaucoma Patients Attending a Tertiary Institution in Nigeria

Optic Disc Size in Glaucoma Patients Attending a Tertiary Institution in Nigeria

... and optic discs with larger vertical diameters have considerably greater vertical cup- disc ratios ...of optic disc size vary with the measurement technique utilized ...appearing optic nerve ...

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Sudden Bilateral Blindness Following Massive Uterine Bleeding: Reports of 2 Cases

Sudden Bilateral Blindness Following Massive Uterine Bleeding: Reports of 2 Cases Chinyere Nnenne Pedro-Egbe 1* and Elizabeth Awoyesuku 1

... ischemic optic neuropathy is the result of the interruption of oxygen supply to the optic nerve head anterior to the lamina cribrosa, and the major contributing factors include failure of ...

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Optic Nerve Hypoplasia: A Retrospective Analysis of Clinical Presentation and Disease Severity

<p>Optic Nerve Hypoplasia: A Retrospective Analysis of Clinical Presentation and Disease Severity</p>

... this, optic nerve hypo- plasia patients may mistakenly be labeled with alternative disease states, including optic ...retinal nerve fi ber layer (RNFL) thickness at the optic ...

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Comparison study of OCT, HRT and VF findings among normal controls and patients with pseudoexfoliation, with or without increased IOP

Comparison study of OCT, HRT and VF findings among normal controls and patients with pseudoexfoliation, with or without increased IOP

... the optic nerve head (ONH) and the optic fiber layer, with optical coherence tomography (OCT) and Heidelberg retina tomograph (HRT) the most ...peripapillary nerve fiber layer, a method ...

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Light-chain amyloidosis mimicking giant cell arteritis in a bilateral anterior ischemic optic neuropathy case

Light-chain amyloidosis mimicking giant cell arteritis in a bilateral anterior ischemic optic neuropathy case

... The patient was admitted to the rheumatology service of our hospital for suspect silent GCA, and high dose corticosteroid therapy was immediately started (1 g methilprednisolone/day i.v. in the first three days, then ...

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Retinal Nerve Fiber Layer Thickness in a Subset of Karachi (Pakistan) Population

Retinal Nerve Fiber Layer Thickness in a Subset of Karachi (Pakistan) Population

... 22. Rao HL, Kumar AU, Babu JG, Kumar A, Senthil S, Garudadri CS. Predictors of normal optic nerve head, retinal nerve fiber layer, and macular parameters measured by spectral domain optical ...

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Automated Glaucoma Detection using Cup to Disc Ratio

Automated Glaucoma Detection using Cup to Disc Ratio

... blindness. Optic nerve head segmentation is one of the methods to detect ...glaucoma. Nerve head comprise of optic disc and optic ...

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