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Spectralis

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https://www.readbyqxmd.com/read/28430332/relationship-between-corneal-biomechanical-properties-and-optic-nerve-head-changes-after-deep-sclerectomy
#1
Laura Díez-Álvarez, Francisco J Muñoz-Negrete, Pilar Casas-Llera, Noelia Oblanca, Victoria de Juan, Gema Rebolleda
PURPOSE: To evaluate corneal biomechanical properties and optic nerve head (ONH) changes following deep sclerectomy (DS) and the relation to each other. METHODS: Forty-nine eyes with primary open-angle glaucoma that underwent DS were studied. Corneal biomechanical properties were assessed using the Ocular Response Analyzer and the ONH was evaluated by Spectralis optical coherence tomography with enhanced depth imaging technology before surgery and 3 months postoperatively...
April 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28426630/outer-nuclear-layer-thinning-in-pachychoroid-pigment-epitheliopathy
#2
M Giray Ersoz, Murat Karacorlu, Serra Arf, Mumin Hocaoglu, Isil Sayman Muslubas
PURPOSE: To compare the average thicknesses of central inner retinal layers in eyes with pachychoroid pigment epitheliopathy (PPE), with uncomplicated pachychoroid (UCP), and of healthy subjects. METHODS: Medical records of patients with PPE and UCP were retrospectively reviewed. Twenty-nine eyes with foveal PPE, 30 eyes with UCP, and 29 eyes of healthy subjects were included. Spectral-domain optical coherence tomography with enhanced depth imaging was used for all optical coherence tomography scans...
April 19, 2017: Retina
https://www.readbyqxmd.com/read/28421139/regional-relationship-between-macular-retinal-thickness-and-corresponding-central-visual-field-sensitivity-in-glaucoma-patients
#3
Chun-Hsiu Liu, Shirley H L Chang, Shiu-Chen Wu
Purpose. To investigate the relationship between macular retinal thickness (MRT) and central visual field sensitivity (VFS) in patients with glaucoma. Methods. This retrospective study enrolled patients diagnosed with open-angle glaucoma. All study patients underwent Humphrey 10-2 visual field (VF) test and Spectralis spectral-domain optical coherence tomography (SD-OCT) exam for MRT measurement. Results. Sixty-eight eyes of 68 patients were examined. The correlation coefficients between VFS and MRT were 0...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28419397/influence-of-retinal-pathology-on-the-reliability-of-macular-thickness-measurement-a-comparison-between-optical-coherence-tomography-devices
#4
Bobak Bahrami, Shaun Y P Ewe, Thomas Hong, Meidong Zhu, Germane Ong, Kehui Luo, Andrew Chang
BACKGROUND AND OBJECTIVE: To evaluate the repeatability, reliability, and comparability of macular thickness measurements between three optical coherence tomography (OCT) machines in healthy eyes, eyes with diabetic macular edema (DME), and eyes with neovascular age-related macular degeneration (nAMD). PATIENTS AND METHODS: Twenty-three eyes with DME, 26 eyes with nAMD, and 24 healthy eyes as controls were evaluated. Scans were performed using the swept-source Triton (Topcon, Tokyo, Japan), the spectral-domain Cirrus (Carl Zeiss Meditec, Dublin, CA), and the Spectralis (Heidelberg Engineering, Heidelberg, Germany) machines...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28393037/changes-in-retinal-vessel-diameters-in-migraine-patients-during-attack-free-period
#5
Metin Unlu, Duygu Gulmez Sevim, Murat Gultekin, Recep Baydemir, Cagatay Karaca, Ayse Oner
AIM: To evaluate the retinal vessel diameters in patients with migraine by optical coherence tomography (OCT). METHODS: In this cross-sectional study, 124 eyes of 62 patients with a diagnosis of unilateral migraine during attack-free period and 42 age- and sex-matched control subjects were included. Migraine patients were divided into the ≤2 migraine attacks per month group and the ≥5 migraine attacks per month group. All subjects underwent complete ophthalmological and neurological examinations before measurements...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28391369/relationship-between-lamina-cribrosa-displacement-and-trans-laminar-pressure-difference-in-papilledema
#6
Javier García-Montesinos, Francisco J Muñoz-Negrete, Victoria de Juan, Gema Rebolleda
PURPOSE: The purpose of this study was to describe morphological changes in lamina cribrosa (LC), prelaminar tissue thickness (PTT) and Bruch's membrane opening (BMO) in eyes affected by papilledema and correlate them with trans-LC-pressure difference (TLCD). METHODS: This was a prospective study, including twelve eyes newly diagnosed of papilledema. Eyes underwent scanning with Spectralis-OCT with enhanced depth imaging to compare BMO, anterior LC surface position (LC depth-LCD-) and PTT before and after oedema resolution...
April 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28389700/the-predictability-of-ocriplasmin-treatment-effects-is-there-consensus-among-retinal-experts-results-from-the-export-study
#7
Thomas Bertelmann, Joachim Wachtlin, Stefan Mennel, Michael J Koss, Mathias M Maier, Ricarda G Schumann, Sara Kazerounian, Hanna Daniel, Steffen Schmitz-Valckenberg
PURPOSE: To evaluate the agreement and predictability of ocriplasmin treatment effects among retinal experts (raters) by assessment of retinal imaging data of eyes treated for vitreomacular traction in nine different centers in Germany and Austria. METHODS: Retrospective cohort study. Combined confocal near-infrared scanning laser ophthalmoscopy and spectral-domain optical coherence tomography images (Spectralis® device, Heidelberg Engineering GmbH, Germany) from 136 eyes of 135 subjects were reviewed by 14 raters using an internet-based grading database and a standardized questionnaire...
April 7, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28383403/influence-of-the-lamina-cribrosa-on-the-rate-of-global-and-localized-retinal-nerve-fiber-layer-thinning-in-open-angle-glaucoma
#8
Hae-Young Lopilly Park, Sung In Kim, Chan Kee Park
The advent of optical coherence tomography (OCT) imaging allows identification of the structural contribution of the lamina cribrosa (LC) to glaucoma progression. This study aimed to determine the role of various LC features, such as the LC depth (LCD), LC thickness (LCT), and focal LC defects, on the future rate of progressive retinal nerve fiber layer (RNFL) thinning in patients with glaucoma. One hundred eighteen patients with glaucoma who had undergone at least 4 OCT examinations were included. Features of LC, including the LCD, LCT, and presence of focal LC defects, from serial scan of the optic disc using the enhanced depth imaging of Spectralis OCT; were analyzed at baseline...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28378149/the-correlation-of-hyperopia-and-choroidal-thickness-vessel-diameter-and-area
#9
Ahmet Kaderli, Mehmet Akif Acar, Nurten Ünlü, Güner Özkan Üney, Firdevs Örnek
OBJECTIVE: This study evaluates the effect of axial length and hyperopia error on macular choroidal thickness as well as choroidal vessel lumen diameter and area with EDI-OCT in short eyes. MATERIALS AND METHODS: The study includes 64 volunteers who are over 18 years of ages and applied to Eye Clinic of Ankara Training and Research Hospital. Choroidal thickness, choroidal vessel lumen diameter and areas were measured with Spectralis(®) OCT device using EDI technique...
April 4, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28376041/comparison-of-ganglion-cell-inner-plexiform-layer-thickness-by-cirrus-and-spectralis-optical-coherence-tomography-in-diabetic-macular-edema
#10
Julia Hafner, Sonja Prager, Jan Lammer, Katharina Kriechbaum, Christoph Scholda, Eleonore Pablik, Ursula Schmidt-Erfurth
PURPOSE: Reduced thickness of the ganglion cell inner plexiform layer indicates diabetic neurodegeneration and can be assessed by spectral domain optical coherence tomography. The authors investigated the comparability of ganglion cell inner plexiform layer measurements from two spectral domain optical coherence tomography devices in patients with diabetic macular edema (DME). METHODS: Analysis of optical coherence tomography data sets of eyes with and fellow eyes without DME...
April 3, 2017: Retina
https://www.readbyqxmd.com/read/28333563/effect-of-high-altitude-exposure-on-intraocular-pressure-using-goldmann-applanation-tonometry
#11
Gabriel Willmann, Kai Schommer, Maximilian Schultheiss, M Dominik Fischer, Karl-Ulrich Bartz-Schmidt, Florian Gekeler, Andreas Schatz
Willmann, Gabriel, Kai Schommer, Maximilian Schultheiss, M. Dominik Fischer, Karl-Ulrich Bartz-Schmidt, Florian Gekeler, and Andreas Schatz. Effect of high altitude exposure on intraocular pressure using Goldmann applanation tonometry. High Alt Med Biol. 00:000-000, 2017. AIMS: The aim of the study was to quantify changes of intraocular pressure (IOP) during exposure to 4559 m using the state-of-the-art method of Goldmann applanation tonometry for IOP measurement and to detect correlations between IOP and acute mountain sickness (AMS) in a prospective manner...
March 23, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28321986/monitoring-retinoschisis-and-non-acute-retinal-detachment-by-optical-coherence-tomography-morphologic-aspects-and-clinical-impact
#12
Katharina Eibenberger, Stefan Sacu, Sandra Rezar-Dreindl, Julia Pöcksteiner, Michael Georgopoulos, Ursula Schmidt-Erfurth
PURPOSE: To differentiate retinoschisis (RS) from non-acute retinal detachment (naRD) in clinical routine using optical coherence tomography (OCT), describe unique morphological OCT characteristics and monitor disease progression. METHODS: This prospective, observational study included 64 eyes of 44 patients with either RS or naRD. Patients were examined clinically and using Heidelberg Spectralis OCT(®) , Topcon DRI OCT(®) and Cirrus HRA-OCT(®) over 2 years with follow-up at 1, 3, 6, 12 and 24 months...
March 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28315514/optic-nerve-head-in-central-retinal-vein-occlusion-by-spectral-domain-oct
#13
Antonio Longo, Teresio Avitabile, Maurizio G Uva, Vincenza Bonfiglio, Andrea Russo, Mario D Toro, Caterina Gagliano, Matteo Fallico, Michele Reibaldi
PURPOSE: To evaluate the morphology of optic nerve head by spectral-domain optical coherence tomography (SD-OCT) in patients with unilateral central retinal vein occlusion (CRVO). METHODS: In 39 consecutive patients with unilateral CRVO and 39 healthy controls, morphologic parameters of optic nerve head were assessed in both eyes by Spectralis SD-OCT using a custom radial B-scan pattern. The length of Bruch membrane opening (BMO) was measured in OCT scans, and optic disc diameters (DD) were assessed in infrared fundus photographs...
February 28, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28301411/retinal-phenotype-in-a-case-of-lchad-tfp-deficiency-with-late-stage-diagnosis
#14
Jacob A Knowles, Ioannis S Dimopoulos, Ian M MacDonald
PURPOSE: To report the retinal phenotype of a rare case of long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD)/trifunctional protein (TFP) deficiency diagnosed in his late 40s with ocular findings of diffuse chorioretinal atrophy and bilateral retinoschisis. METHODS: An acylcarnitine profile assay revealed LCHAD/TFP deficiency in a 45-year-old man with a history of high myopia, bilateral decreased vision, episodic rhabdomyolysis, and peripheral neuropathy. Ocular findings were evaluated with spectral domain optical coherence tomography (Spectralis OCT; Heidelberg Engineering, Heidelberg, Germany) and color fundus photography...
March 15, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28297035/short-term-effects-of-early-switching-to-ranibizumab-or-aflibercept-in-diabetic-macular-edema-cases-with-non-response-to-bevacizumab
#15
Mohammed Ashraf, Ahmed A R Souka, Hassan ElKayal
BACKGROUND AND OBJECTIVES: To study the effect of early switching to ranibizumab (Lucentis; Genentech, South San Francisco, CA) or aflibercept (Eylea; Regeneron, Tarrytown, NY) in cases of diabetic macular edema (DME) that have shown no response to bevacizumab (Avastin; Genentech, South San Francisco, CA). PATIENTS AND METHODS: A retrospective study involving 59 eyes of 45 patients with DME previously treated with bevacizumab. Patients were switched either to ranibizumab or aflibercept...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28277878/effect-of-smoking-on-the-thickness-of-retinal-layers-in-healthy-smokers
#16
Rahmi Duman, Reşat Duman, Mehmet Cem Sabaner, Ersan Çetinkaya
PURPOSE: To compare the thicknesses of the retinal layers in smokers with those of non smoking healthy subjects using spectral-domain optical coherence tomography (SD-OCT). METHODS: One hundred and eight subjects were included in the study. Two groups were separated as smokers and non-smokers. Both groups were chosen to be similar in terms of age and gender. SD-OCT images were generated with Spectralis OCT (Heidelberg Engineering, Heidelberg, Germany). An automated algorithm was developed to segment the macular retina into eight layers and quantitate the thickness of each layer for the fovea, parafovea and perifovea...
March 3, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28277440/abnormal-vascular-complex-within-an-idiopathic-epiretinal-membrane-imaged-by-optical-coherence-tomography-angiography
#17
Sacha Gueunoun, Gabriela Nazim, Elsa Bruyère, André Sieiro, Eric H Souied, Alexandra Miere
PURPOSE: To report the case 70-year-old patient presenting with preretinal, abnormal vascularization accompanying an idiopathic epiretinal membrane (ERM), identified by optical coherence tomography angiography. METHODS: Observational case report of one patient. RESULTS: The authors describe the case of a patient presenting with an ERM on the right eye since March 2011, diagnosed by fundus biomicroscopy and spectral domain optical coherence tomography (Spectralis; Heidelberg Engineering, Heidelberg, Germany)...
March 8, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28275528/signal-normalization-reduces-image-appearance-disparity-among-multiple-optical-coherence-tomography-devices
#18
Chieh-Li Chen, Hiroshi Ishikawa, Gadi Wollstein, Richard A Bilonick, Larry Kagemann, Joel S Schuman
PURPOSE: To assess the effect of the previously reported optical coherence tomography (OCT) signal normalization method on reducing the discrepancies in image appearance among spectral-domain OCT (SD-OCT) devices. METHODS: Healthy eyes and eyes with various retinal pathologies were scanned at the macular region using similar volumetric scan patterns with at least two out of three SD-OCT devices at the same visit (Cirrus HD-OCT, Zeiss, Dublin, CA; RTVue, Optovue, Fremont, CA; and Spectralis, Heidelberg Engineering, Heidelberg, Germany)...
February 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28265747/the-effect-of-allergic-rhinitis-with-positive-skin-prick-test-on-choroidal-thickness
#19
Alper Yenigun, Ahmet Elbay, Remzi Dogan, Orhan Ozturan, Mehmet Hakan Ozdemir
Allergic rhinitis is an inflammatory disease that develops through immunoglobulin E in the rhino-ocular mucosa due to allergy. The main symptoms are runny nose, nasal congestion, sneezing and itchy nose. This study was designed to investigate the effect of allergic rhinitis on choroidal thickness. This study was planned as a case-control study. This study performed in a tertiary referral center. The study included 61 patients with allergic rhinitis and 35 healthy subjects. Patients in both groups underwent skin prick test...
March 6, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28243926/comparing-three-different-modes-of-electroretinography-in-experimental-glaucoma-diagnostic-performance-and-correlation-to-structure
#20
Laura Wilsey, Sowjanya Gowrisankaran, Grant Cull, Christy Hardin, Claude F Burgoyne, Brad Fortune
PURPOSE: To compare diagnostic performance and structure-function correlations of multifocal electroretinogram (mfERG), full-field flash ERG (ff-ERG) photopic negative response (PhNR) and transient pattern-reversal ERG (PERG) in a non-human primate (NHP) model of experimental glaucoma (EG). METHODS: At baseline and after induction of chronic unilateral IOP elevation, 43 NHP had alternating weekly recordings of retinal nerve fiber layer thickness (RNFLT) by spectral domain OCT (Spectralis) and retinal function by mfERG (7F slow-sequence stimulus, VERIS), ff-ERG (red 0...
February 27, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
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