24 results match your criteria: "University of Medicine Lyon 1[Affiliation]"

Optical coherence tomography angiography findings in retinal cavernous hemangioma: New cases and review of the literature.

J Fr Ophtalmol

December 2023

Department of Ophthalmology, Croix-Rousse University Hospital, Hospices civils de Lyon, University of medicine Lyon 1, Lyon, France; Department of Ophthalmology, Caen Normandie University Hospital, Caen, France. Electronic address:

Introduction: Retinal cavernous hemangioma (RCH) is a rare retinal vascular disease characterized by grape-like clusters of saccular aneurysms, usually unilateral, asymptomatic and non-progressive. The diagnosis is made by multimodal imaging including conventional fluorescein angiography (FA). The recent introduction of swept source optical coherence tomography angiography (SS-OCTA) has allowed new insight into vascular diseases, allowing non-invasive, more precise visualization of retinal and choroidal blood flow, and represents a possible alternative to FA.

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(1) Background: to investigate the correlation between structural (retinal ganglion cells and retinal nerve fibers) and functional alterations analyzed point-by-point in the central 10 degrees of the visual field of patients with advanced glaucoma using Humphrey 10-2 visual field tests. (2) Methods: Single-center prospective cohort study carried on from October 2018 to February 2019 at the Croix-Rousse hospital, Lyon, France. The primary outcome measure was the point-by-point correlation between retinal sensitivity (Humphrey 10-2) and retinal ganglion cell complex (GCC) thickness.

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Purpose: Numerous small hyperreflective dots (HRDs) can be seen within the hyporeflective layer between the ellipsoid zone (EZ) and the interdigitation zone (IZ) on C-scan spectral-domain optical coherence tomography (SD-OCT) with a yet unknown variation under light conditions. The aim of this study was to explore light-induced SD-OCT changes in these HRDs.

Methods: The study subjects were randomly assigned to two groups: Group 1 experienced a dark adaptation protocol followed by intense retinal photobleaching, while Group 2, serving as the control group, was exposed to constant ambient light without any variation.

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Unexpected amaurosis occurring after peribulbar anesthesia: Exploring the causes in two cases.

Eur J Ophthalmol

January 2022

Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, University of Lyon 1, Lyon, France.

Peribulbar anesthesia (PB) is known to be safer than retrobulbar (RB) anesthesia. To our knowledge, no amaurosis has been described after PB. We report here the cases of two patients who underwent PB before membrane peeling.

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Sub-Tenon anesthesia, maintained oral anticoagulant and antiplatelet therapies and vitreoretinal surgery: About 68 cases.

J Fr Ophtalmol

June 2019

Department of Ophthalmology, University of Lyon, Croix-Rousse University Hospital, Hospices Civils de Lyon, 03, Grande Rue de la Croix-Rousse, 69317 Lyon Cedex 04, France; UMR-CNRS 5510 Matéis, University of Medicine Lyon 1, 69004 Lyon, France. Electronic address:

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Purpose: To compare the efficacy and safety of the dexamethasone (DEX) intravitreal implant of vitrectomized and nonvitrectomized eyes in real-world conditions.

Methods: This was a retrospective, multicenter, observational study. All consecutive patients presenting with at least one 0.

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Optical Coherence Tomography Angiography Quantitative Assessment of Choriocapillaris Blood Flow in Central Serous Chorioretinopathy.

Am J Ophthalmol

October 2018

Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, University of Medicine Lyon 1, Lyon, France; UMR-CNRS 5510 Matéis, Villeurbanne, France. Electronic address:

Purpose: To investigate choriocapillaris (CC) blood flow in unaffected fellow eyes of patients with central serous chorioretinopathy (CSC) using quantitative optical coherence tomography angiography (OCTA) analysis.

Design: Case-control study.

Methods: Patients with acute, recurrent, or persistent CSC, along with healthy sex- and age-matched subjects, were included.

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Article Synopsis
  • The study focused on the real-world effectiveness of antivascular endothelial growth factor agents, particularly ranibizumab, in treating diabetic macular edema (DME) over 12 months.
  • Results showed a mean visual acuity improvement of 4.4 letters and a notable reduction in central retinal thickness, highlighting the treatment's impact.
  • However, the outcomes in this real-world setting were lower compared to results from controlled clinical trials, suggesting potential differences in effectiveness in everyday medical practice.
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Purpose: To describe abnormal dark (hyposignal) and white (hypersignal) lesions observed on optical coherence tomography angiography in central serous chorioretinopathy.

Methods: Prospective, multicenter, and descriptive study including patients with active or quiescent central serous chorioretinopathy. All patients had undergone a complete ophthalmic examination.

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Background: Ocular toxoplasmosis (OT) is a common cause of posterior uveitis worldwide. The diagnosis of OT is based on clinical findings, but in most cases, laboratory tests are required to confirm the aetiology, especially when other diseases are suspected. The aim of this study was to evaluate which methods, between the Goldmann-Witmer coefficient (GWC) and immunoblotting (IB) with both IgG and IgA, in aqueous humour (AH) samples, can be the most sensitive to diagnose OT, in current practice, especially in the first three weeks.

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Background: To determine the utility of the intravitreal dexamethasone implant as therapy for cystoid macular edema (CME) secondary to retinitis pigmentosa (RP) recalcitrant to carbonic anhydrase inhibitor therapy over 2 years as a pilot study.

Methods: This was a prospective case series. Patients who showed either an incomplete or no response to topical dorzolamide for at least 1 month and oral acetazolamide therapy for at least 15 days were recruited for the study with informed consent.

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Purpose: To evaluate the efficacy and safety of intravitreal 0.7-mg dexamethasone implant (DEX-I) (Ozurdex®) in the treatment of extensive exudative retinal detachment (RD) associated with uveal melanoma treated using proton beam therapy (PBT).

Methods: Data from 10 patients with exudative RD after PBT treated with intravitreal injection of 0.

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Detection of mild papilloedema in posterior uveitis using spectral domain optical coherence tomography.

Br J Ophthalmol

April 2017

Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, UMR-CNRS 5510 Matéis, University of Medicine Lyon 1, Lyon, France.

Objective: To compare two methods for diagnosing mild papilloedema (PO) using peripapillary total retinal (PTR) and retinal nerve fibre layer (RNFL) thickness measurement by spectral domain optical coherence tomography (OCT) in patients suffering from posterior uveitis.

Methods: 17 eyes in 17 patients with PO caused by posterior uveitis, 15 eyes in 15 patients with uveitis but with no PO based on slit lamp analysis were studied. High-quality OCT fundus images were analysed and graded by three masked observers using the Modified Frisén Scale.

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SAFETY OF INTRAVITREAL DEXAMETHASONE IMPLANT (OZURDEX): The SAFODEX study. Incidence and Risk Factors of Ocular Hypertension.

Retina

July 2017

*Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, UMR-CNRS 5510 Matéis, University of Medicine Lyon 1, Lyon, France; †Department of Ophthalmology, Desgenettes Military Hospital, Lyon, France; and ‡French Military Health Service Academy, Val de Grâce, Paris, France.

Purpose: To analyze the incidence, risk factors, and time course of intraocular pressure elevation after intravitreal dexamethasone implant (Ozurdex).

Methods: The medical charts of 421 consecutive eyes (361 patients) receiving one or more Ozurdex implant between October 2010 and February 2015 were reviewed retrospectively. Ocular hypertension was defined as intraocular pressure of at least 25 mmHg or an increase of at least 10 mmHg from baseline.

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Orthodenticle homeobox 2 (OTX2) controls essential, homeostatic retinal pigment epithelial (RPE) genes in the adult. Using cocultures of human CD14 blood monocytes (Mos) and primary porcine RPE cells and a fully humanized system using human-induced pluripotent stem cell-derived RPE cells, we show that activated Mos markedly inhibit RPEOTX2 expression and resist elimination in contact with the immunosuppressive RPE. Mechanistically, we demonstrate that TNF-α, secreted from activated Mos, mediates the downregulation of OTX2 and essential RPE genes of the visual cycle among others.

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REAL-LIFE STUDY IN DIABETIC MACULAR EDEMA TREATED WITH DEXAMETHASONE IMPLANT: The Reldex Study.

Retina

April 2017

*Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, UMR-CNRS 5510 Matéis, University of Medicine Lyon 1, Lyon, France; †Department of Ophthalmology, Desgenettes Military Hospital, Lyon, France; and ‡French Military Health Service Academy, Val de Grâce, Paris, France.

Purpose: To evaluate the efficacy and safety of intravitreal implant of dexamethasone (Ozurdex) in diabetic macular edema in real-life practice.

Methods: In this bicentric retrospective study, the authors reviewed 128 eyes of 89 patients. Main outcome measures included changes in best-corrected visual acuity, central macular thickness, time to retreatment, and incidence of adverse effects.

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PREVALENCE OF RETICULAR PSEUDODRUSEN IN AGE-RELATED MACULAR DEGENERATION USING MULTIMODAL IMAGING.

Retina

January 2016

*Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, UMR-CNRS 5510 Matéis, University of Medicine Lyon 1, Lyon, France; †Pôle Vision, Clinique du Val d'ouest, Ecully, France; ‡Professor Sahel Department, Rothschild Ophthalmologic Foundation, Paris, France; and §Department of Medical Information and Epidemiology, Le Vinatier Hospital, University of Medicine Lyon 1, Bron, France.

Purpose: To determine the rate of reticular pseudodrusen (RPD) in age-related macular degeneration using multimodal imaging, including color fundus photography, the blue channel image of fundus photography, infrared reflectance, fundus autofluorescence, multicolor imaging, and spectral domain optical coherence tomography, as well as to compare the sensitivities and specificities of these modalities for detecting RPD.

Methods: This prospective study included 243 eyes from 125 consecutive patients with age-related macular degeneration. They underwent fundus examination including color fundus photography, blue channel, infrared reflectance, fundus autofluorescence, multicolor imaging, and spectral domain optical coherence tomography in both eyes.

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"En-face" spectral-domain optical coherence tomography findings in multiple evanescent white dot syndrome.

J Ophthalmol

May 2014

Professor Sahel Department, Rothschild Ophthalmologic Foundation, 25 rue Manin, 75019 Paris, France ; Kleber Retinal Center, 50 Cours Franklin Roosevelt, 69006 Lyon, France ; Monticelli Paradis Retinal Center, 88 rue du Commandant Rolland, 13008 Marseille, France.

Purpose. The recent use of "en-face" enhanced-depth imaging spectral-domain optical coherence tomography (EDI SD-OCT) helps distinguish the retinal layers involved in the physiopathology of multiple evanescent white dot syndrome (MEWDS). Methods.

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B-scan and "en-face" spectral-domain optical coherence tomography imaging for the diagnosis and followup of acute retinal pigment epitheliitis.

Case Rep Med

March 2013

Department of Ophthalmology Croix-Rousse University Hospital and Hospices Civils de Lyon, University of Medicine Lyon 1, 103 Grande Rue de la Croix-Rousse, 69317 Lyon Cedex 04, France.

Purpose. To report B-scan and "En-face" spectral-domain optical coherence tomography (SD-OCT) findings in acute retinal pigment epitheliitis (ARPE). Methods.

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