Search results for "Optical Coherence"

showing 10 items of 223 documents

High-resolution images in macular disorders

2021

Objective: This study analyzed and compared the results of adaptive optics (AO) and fundus autofluorescence (FAF) in various maculopathies. Methods: The study included four different types of maculopathy: central serous chorioretinopathy (CSC), retinitis pigmentosa (RP), Stargardt disease (STGD) and phototoxic retinopathy. In all four cases, cone mosaic and cone density were obtained using AO fundus camera. Further, the high-resolution images were compared with the FAF and optical coherence tomography (OCT) results. Results: In CSC, FAF and AO, changes could be shown in the macula even two years after the subretinal fluid resorption, as opposed to a normal OCT. The improvement of FAF and co…

medicine.medical_specialtyVisual acuitygenetic structuresCase Reportsadaptive opticsOptical coherence tomographyOphthalmologyRetinitis pigmentosaMedicinecone densityRetinal pigment epitheliumfundus autofluorescencemedicine.diagnostic_testbusiness.industrycone mosaicGeneral Medicinemedicine.diseaseeye diseasesStargardt diseaseSerous fluidmedicine.anatomical_structureMaculopathysense organsmedicine.symptombusinessRetinopathyromanian journal of ophthalmology
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Intravitreal ranibizumab for symptomatic drusenoid pigment epithelial detachment without choroidal neovascularization in age-related macular degenera…

2011

Roberto Gallego-Pinazo,1,2 Ana Marina Suelves-Cogollos1, Ester Francés-Muñoz,1 J María Millán,2,3 J Fernando Arevalo,4 J Luis Mullor,5 Manuel Díaz-Llopis,1,2,61Department of Ophthalmology, Hospital Universitario La Fe, Valencia, Spain; 2Centro de Investigación Biomédica en Red de Enfermedades Raras, Valencia, Spain; 3Department of Genetics, Hospital Universitario La Fe, Valencia, Spain; 4Retina and Vitreous Service, Clínica Oftalmológica Centro Caracas, Caracas, Venezuela; 5Unit of Experimental Ophthalmology, Fundación para la Investigación del Hospital Universitario La F…

medicine.medical_specialtyVisual acuitygenetic structureschoroidal neovascularizationOptical coherence tomographyOphthalmologymedicineMetamorphopsiadrusenoid pigment epithelial detachmentranibizumabage-related macular degenerationOriginal Researchsoft drusenmedicine.diagnostic_testbusiness.industryClinical OphthalmologyDiabetic retinopathyMacular degenerationmedicine.diseaseeye diseasesOphthalmologyChoroidal neovascularizationsense organsRanibizumabmedicine.symptomIntravitreal ranibizumabbusinessmedicine.drugClinical Ophthalmology
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<p>Multimodal Evaluation of Visual Function in Geographic Atrophy versus Normal Eyes</p>

2020

Purpose To comprehensively evaluate visual function in eyes with geographic atrophy (GA) as compared to normal eyes. Patients and Methods Sixty-three eyes from 63 patients ≥50 years old were recruited for this observational study; 31 were identified as normal macular health eyes and 32 with GA. Visual function was tested with best corrected visual acuity (BCVA), low luminance visual acuity (LLVA), low luminance deficit (LLD), reading speed, macular integrity microperimetry, fixation stability, and contrast sensitivity function (CSF). Anatomic function was evaluated with spectral-domain optical coherence tomography (SD-OCT) and fundus autofluorescence (FAF). Quality of life and vision were a…

medicine.medical_specialtyVisual acuitygenetic structuresmedicine.diagnostic_testbusiness.industryVisual impairmenteye diseasesGeographic atrophy03 medical and health sciencesOphthalmology0302 clinical medicineOptical coherence tomographyVisual functionOphthalmologyFixation (visual)030221 ophthalmology & optometrymedicineSpatial frequencymedicine.symptombusinessMicroperimetry030217 neurology & neurosurgeryClinical Ophthalmology
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Optical Coherence Tomography Angiography of Macula and Optic Nerve in Autism Spectrum Disorder: A Pilot Study

2020

The aim of this study was to compare retinal thicknesses and vascular parameters between autism spectrum disorder (ASD) and neurotypical (NT) individuals. Recruited ASD subjects and age- and sex-matched NT controls underwent 2 optical coherence tomography scans (OCT) (macular cube and optic nerve cube) and 2 OCT angiography (OCTA) scans (macular and optic nerve head (ONH) OCTA) with the device Cirrus 5000 (Zeiss). Concerning OCT, we considered full retina thickness in 9 macular sectors of the Early Treatment Diabetic Retinopathy Study (ETDRS) pattern and peripapillary retinal nerve fiber layer (pRNFL) thickness in 4 quadrants and 12 clock-hour sectors. Vessel density and capillary perfusion…

medicine.medical_specialtygenetic structuresNerve fiber layerlcsh:Medicineautism spectrum disorderoptical coherence tomography angiographyArticleoptic nerveperfusion03 medical and health scienceschemistry.chemical_compound0302 clinical medicineOptical coherence tomographyOphthalmologyvessel densitymedicinemacula030304 developmental biology0303 health sciencesRetinamedicine.diagnostic_testbusiness.industrylcsh:RautoregulationRetinalneurotypicalGeneral MedicineDiabetic retinopathymedicine.diseaseeye diseasesthicknessfluxmedicine.anatomical_structurechemistryAutism spectrum disorderOptic nervesense organsbusinessPerfusion030217 neurology & neurosurgeryJournal of Clinical Medicine
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Preliminary in vivo positional analysis of a posterior chamber phakic intraocular lens by optical coherence tomography and its correlation with clini…

2012

Purpose: To analyze by spectral-domain optical coherence tomography the anatomical relationship of a specific type of posterior chamber phakic intraocular lens (pIOL) implanted in cases of high to moderate myopia with the adjacent intraocular structures and to correlate it with clinical outcomes. Methods: Prospective observational case series including 18 eyes with high to moderate myopia (spherical equivalent between −5.88 and −15.75 D) of 9 patients (age range, 29–49 years) undergoing bilateral Phakic Refractive Lens (PRL, Zeiss) implantation. Postoperative visual acuity, refraction, contrast sensitivity (CS), and ocular higher order aberrations (HOA) were evaluated. Furthermore, the in v…

medicine.medical_specialtygenetic structuresSpectral domainPositional analysislcsh:OphthalmologyOptical coherence tomographyIn vivoOphthalmologymedicinelcsh:QC350-467Optical coherence tomographymedicine.diagnostic_testbusiness.industrySpectral-domaineye diseasesPosterior chamber phakic intraocular lensTomografía de coherencia ópticaLentes refractivas fáquicaslcsh:RE1-994Anatomical relationshipOriginal Articlesense organsDominio espectralPhakic Refractive Lens (PRL)businesslcsh:Optics. LightOptometryJournal of Optometry
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Clinical Features and Natural History of AMD on OCT

2009

Despite recent progress, age-related macular degeneration (AMD) remains the leading cause of vision loss in high-income countries, and its incidence appears to be increasing, probably due to longer life span and improved methods of detection.

medicine.medical_specialtygenetic structuresmedicine.diagnostic_testLife spanbusiness.industryIncidence (epidemiology)Macular degenerationmedicine.diseaseeye diseasesNatural historymedicine.anatomical_structureOptical coherence tomographyOphthalmologyMedicinesense organsbusinessOuter nuclear layer
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Optical Coherence Tomography in Glaucoma

2012

Retinal nerve fiber layer (RNFL) thinning and optic nerve head cupping are key diagnostic features of glaucomatous optic neuropathy. The higher resolution of the recently introduced SD-OCT offers enhanced visualization and improved segmentation of the retinal layers, providing a higher accuracy in identification of subtle changes of the optic disc and RNFL thinning associated with glaucoma.

medicine.medical_specialtygenetic structuresmedicine.diagnostic_testNerve fiber layerGlaucomaRetinalmedicine.diseaseGlaucomatous optic neuropathyeye diseaseschemistry.chemical_compoundmedicine.anatomical_structureOptical coherence tomographychemistryOphthalmologymedicineOptic nervesense organsOptic disc
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Macular laser photocoagulation guided by spectral-domain optical coherence tomography versus fluorescein angiography for diabetic macular edema.

2011

Roberto Gallego-Pinazo1,2, Ana Marina Suelves-Cogollos1, Rosa Dolz-Marco1, J Fernando Arevalo3, Salvador García-Delpech1, J Luis Mullor4, Manuel Díaz-Llopis1,2,51Department of Ophthalmology, Hospital Universitario La Fe, Valencia, Spain; 2Centro de Investigación Biomédica en Red de Enfermedades Raras, Valencia, Spain; 3Retina and Vitreous Service, Clinical Ophthalmology Center, Caracas, Venezuela; 4Unit of Experimental Ophthalmology, Hospital Universitario La Fe, Valencia, Spain; 5University of Valencia, Faculty of Medicine, Valencia, SpainBackground: The aim of this study was to compare the efficacy of spectral-domain optical coherence tomography…

medicine.medical_specialtygenetic structuresmedicine.diagnostic_testbusiness.industryDiabetic macular edemaClinical OphthalmologySpectral domainFluorescein angiographyLasereye diseaseslaw.inventionOphthalmologyOptical coherence tomographymacular laser photocoagulationlawspectral-domain optical coherence tomographyfluorescein angiographyOphthalmologymedicinesense organsdiabetic macular edemabusinessOriginal Research
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Towards the new spectral-domain optical coherence tomography based classification of age-related macular degeneration

2012

Abstract Introduction Age-related macular degeneration (AMD) is major social and health problem in industrialised societies. The contribution of the new diagnostic techniques, mainly spectral-domain optical coherence tomography (SD-OCT), has led to a better understanding of this disease. Aim To review the current clinical classification of AMD, to describe the new tomographic classification of wet AMD, and to review the new topographical findings in dry AMD. Development There are two classically described forms of AMD: dry and wet; there are also three progressive stages of severity: early, intermediate and advanced. This purely clinical stratification does not take into account any criteri…

medicine.medical_specialtygenetic structuresmedicine.diagnostic_testbusiness.industrySpectral domainGeneral MedicineMacular degenerationDrusenmedicine.diseaseeye diseasesOptical coherence tomographyAge relatedOphthalmologymedicineOptometrysense organsSubretinal fluidbusinessArchivos de la Sociedad Española de Oftalmología (English Edition)
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Optic neuropathy caused by type A botulinic toxin

2014

Purpose To report the development of an optical neuropathy after injection of type A botulinic toxin in a subject with blepharospasm. Methods Optical neuropathy was evaluated through a complete ophthalmologic examination consisting of bio-microscopy, tonometry and study of visual sharpness, colour test, visual field, OCT, fluorangiography and determination of VEPs. Results Intravenous therapy was begun with Metilprednisolone (20 mg/Kg/day) and Vitamin B6 associated with oral Citicoline, and there was a clear improvement down to normalization of the symptoms. After 6 months the Humphrey computerized visual field with central 30-2 program threshold test emphasised in ODx an upper half-field a…

medicine.medical_specialtygenetic structuresmedicine.diagnostic_testbusiness.industryThreshold testSettore MED/30 - Malattie Apparato VisivoBlepharospasmGeneral MedicineBlepharospasm Type A botulinic toxin Optic neuropathymedicine.diseaseeye diseasesSurgeryVisual fieldOptic neuropathyMajor duodenal papillaPerimeterOphthalmologyOptical coherence tomographyOphthalmologyFixation (visual)medicineType A botulinic toxinsense organsmedicine.symptombusiness
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