1. Articles from Miklos Schneider

    1-7 of 7
    1. Enhanced depth imaging and swept-source optical coherence tomography findings in choroidal osteoma: a case report

      Enhanced depth imaging and swept-source optical coherence tomography findings in choroidal osteoma: a case report

      Purpose The aim of this study was to report the findings from enhanced depth imaging (EDI) and swept-source optical coherence tomography (OCT) in a choroidal osteoma. Methods A case study of a patient with choroidal osteoma is presented and discussed. Results A 25-year-old woman presented with an asymptomatic peripapillary mass. Fundus examination revealed a yellow–orange, well-defined geographical lesion. B‑scan ultrasonography, corroborated by fundus autofluorescence (FAF) and OCT findings, pointed to the diagnosis of choroidal osteoma. Calcified areas of the tumor were iso-autofluorescent on FAF and hyporeflective on OCT, revealing the morphological patterns of cancellous bone, including a sponge-like ...

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    2. Optic disc morphology in unilateral branch retinal vein occlusion using spectral domain optical coherence tomography

      Optic disc morphology in unilateral branch retinal vein occlusion using spectral domain optical coherence tomography

      Background The aim of this study was to evaluate the association between optic nerve head (ONH) parameters and branch retinal vein occlusion (BRVO) using spectral domain optical coherence tomography (SD-OCT). Methods Both eyes of 40 patients with unilateral BRVO (mean age: 67.4 ± 11.4 years, male: female - 18:22) were enrolled in this study. Control group consisted of randomly selected single healthy eyes of 40 age and gender matched volunteers (mean age: 64.7 ± 15.4 years, male: female - 16:24). ONH parameters (including optic disc area, optic cup area, neuroretinal rim area, cup volume, rim volume, cup-disc area ...

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    3. Optical Coherence Tomography Features of POEMS Syndrome and Castleman Disease-associated Papillopathy

      Optical Coherence Tomography Features of POEMS Syndrome and Castleman Disease-associated Papillopathy

      Purpose : To report ocular symptoms and optical coherence tomography (OCT) features of polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome. Methods : Case report of two Caucasian patients with POEMS, one of whom also had multicentric Castleman disease. Results : Both patients presented with edema on both optic disks, bilateral macular edema was seen in case 1, and peripapillary choroidal neovascularization was seen on the right side in case 2. OCT confirmed papilledema involving all retinal layers, with additional bilateral peripapillary serous retinal detachment involving the macula in both cases, and peripapillary CNV in case 2. Changes in retinal nerve ...

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    4. Boundary Detection Errors on Optical Coherence Tomography Images in Patients With Diabetic Retinopathy

      BACKGROUND AND OBJECTIVE To study the incidence of boundary detection errors produced by optical coherence tomography measurements in patients with diabetic retinopathy. PATIENTS AND METHODS One hundred sixteen eyes with diabetic retinopathy of 64 consecutive patients with diabetes mellitus were included in this retrospective study. The StratusOCT instrument (Carl Zeiss Meditec, Dublin, CA) with the macular thickness map protocol was used for the examinations. After data acquisition, each scan was analyzed using the retinal thickness (single eye) protocol to evaluate whether there was any misdetection of the retinal boundaries. RESULTS Boundary detection errors were found in 35.3% of eyes ...
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    5. Three-dimensional imaging of an optic disk pit using high resolution optical coherence tomography

      PURPOSE. To clarify the origin of the coexisting fluid in an optic disc pit case by using optical coherence tomography (OCT). METHODS. High resolution OCT (Cirrus™ prototype, Carl Zeiss Meditec) was used for image acquisition; three dimensional segmentation was performed using Food and Drug Administration–approved imaging software (3D-Doctor V4.0, Able software Corp., Lexington, MA) to demonstratethe structural changes of the optic nerve head and the retina. RESULTS. Using high resolution OCT, the authors demonstrated that this case of optic pit had a possible connection between the subretinal and the intraretinal space. CONCLUSIONS. The authors assume that the intraretinal ...
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    6. Central corneal thickness measurements with optical coherence tomography and ultrasound pachymetry in healthy subjects and in patients after photorefractive keratectomy

      PURPOSE. To compare central corneal thickness measurements made using two different methods, optical coherence tomography (OCT) and ultrasound pachymetry, applied both in normal eyes and in eyes on which photorefractive keratectomy (PRK) had been performed. A second objective was to assess the intrasession variability of OCT measurements. METHODS. In this prospective study, central corneal thickness was measured in 20 normal subjects (normal group) and in 20 PRK patients using the StratusOCT instrument model 3000 (Carl Zeiss Meditec), and also with an ultrasound pachymeter. Five OCT measurements were performed using the Fast Macular Thickness protocol. Corneal thickness data were obtained with ...
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    7. A Systematic Correlation of Angiography and High-Resolution Optical Coherence Tomography in Diabetic Macular Edema

      Purpose: To correlate leakage patterns in fluorescein angiography (FA) images and retinal morphologic features in high-definition optical coherence tomography (HD OCT) images in diabetic macular edema.Design: Prospective pilot study and case series.Participants: Nine consecutive patients (10 eyes) with diabetic macular edema.Methods: All patients were examined using FA (HRA 2; Heidelberg Engineering) and HD OCT (Carl Zeiss Meditec; resolution, 512×128 pixels, 5.8×5.8 mm, and high-resolution scans consisting of 4096 A scans) on the same day. Using Adobe Photoshop (CS2 Version 9.0; Adobe Systems Incorporated, San Jose, CA) a grid containing 15×7 fields ...

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    1-7 of 7
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    1. (4 articles) Carl Zeiss Meditec
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