696 results match your criteria: "Centre Hospitalier National d'Ophtalmologie[Affiliation]"

Purpose: The aim of this study was to define the role of dystrophin Dp71 in corneal angiogenesis.

Methods: Inflammation-induced corneal neovascularization experiments were performed in -null mice and C57BL/6J wild-type mice.

Results: The corneal neovascular area covered by neovascularization was larger in the injured corneas of the -null mice compared to the corneas of the wild-type mice: 40.

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Purpose: To evaluate the correlation between the quantification of peripapillary sparing and electroretinogram (ERG) outcomes in autosomal recessive Stargardt disease (STGD1).

Methods: Near infrared fundus autofluorescence (NIR-FAF) images of 101 eyes of 101 patients were retrospectively reviewed. Peripapillary sparing was assessed both qualitatively and quantitatively.

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Benzalkonium chloride (BAK), a quaternary ammonium compound widely used as disinfecting agent as well as preservative in eye drops is known to induce toxic effects on the ocular surface with inflammation and corneal nerve damage leading to dry eye disease (DED) in the medium-to-long term. The aim of this study was to evaluate in vitro the toxicity of a conditioned medium produced by corneal epithelial cells previously exposed to BAK (BAK-CM) on trigeminal neuronal cells. A human corneal epithelial (HCE) cell line was exposed to 5.

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Novel in situ gelling ophthalmic drug delivery system based on gellan gum and hydroxyethylcellulose: Innovative rheological characterization, in vitro and in vivo evidence of a sustained precorneal retention time.

Int J Pharm

January 2020

Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), AP-HP, 7 rue du fer à moulin, Paris 75005, France; Université de Paris, UTCBS, CNRS, INSERM, Faculté de Pharmacie, 4 av de l'observatoire, Paris 75006, France(1). Electronic address:

Achieving drug delivery at the ocular level encounters many challenges and obstacles. In situ gelling delivery systems are now widely used for topical ocular administration and recognized as a promising strategy to improve the treatment of a wide range of ocular diseases. The present work describes the formulation and evaluation of a mucoadhesive and ion-activated in situ gelling delivery system based on gellan gum and hydroxyethylcellulose for the delivery of phenylephrine and tropicamide.

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Ocular injuries caused by less-lethal weapons in France.

Lancet

November 2019

Department of Ophthalmology, Sorbonne Université, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris 75013, France. Electronic address:

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Waveform analysis of human retinal and choroidal blood flow with laser Doppler holography.

Biomed Opt Express

October 2019

Institut Langevin, Centre National de la Recherche Scientifique (CNRS), Paris Sciences & Lettres (PSL University), École Supérieure de Physique et de Chimie Industrielles (ESPCI Paris) - 1 rue Jussieu, 75005 Paris, France.

Laser Doppler holography was introduced as a full-field imaging technique to measure blood flow in the retina and choroid with an as yet unrivaled temporal resolution. We here investigate separating the different contributions to the power Doppler signal in order to isolate the flow waveforms of vessels in the posterior pole of the human eye. Distinct flow behaviors are found in retinal arteries and veins with seemingly interrelated waveforms.

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: To report the clinical features and treatment outcomes in immunocompetent patients with anterior segment inflammation (ASI) related to human cytomegalovirus (HCMV) depending on their ethnic origin.: Multicenter retrospective study of 38 patients with at least one test, either HCMV-positive PCR or GWc.: Features of Posner-Schlossman syndrome were observed in 50% of the eyes, Fuchs heterochromic iridocyclitis in 13% of the eyes, chronic nonspecific anterior uveitis in 21% of the eyes, and corneal endotheliitis in 18% of the eyes.

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We investigated the prevalence of reported deep-intronic variants in a French cohort of 70 patients with Stargardt disease harboring a monoallelic pathogenic variant on the exonic regions of . Direct Sanger sequencing of selected intronic regions of ABCA4 was conducted. Complete phenotypic analysis and correlation with the genotype was performed in case a known intronic pathogenic variant was identified.

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Background And Purpose: There are few clinico-radiological data on optic neuritis (ON) with myelin oligodendrocyte glycoprotein antibody (MOG-IgG). The objective was to characterize the clinico-radiological phenotype and outcome of patients with MOG-IgG-related ON.

Methods: The records of all adult patients admitted in three medical centres with MOG-IgG-associated ON who underwent orbital and brain magnetic resonance imaging (MRI) at the acute phase were reviewed.

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Objective: To compare the impact of unilateral versus bilateral Age-related Macular Degeneration (AMD) on saccadic movements, and to show the effect of visual search training on these eye movement performances in AMD subjects. We hypothesized that unilateral and bilateral AMD subjects had abnormal saccadic performances, and that visual search training could improve their performances.

Methods: Three groups participated in visual search training: 13 elderly unilateral AMD subjects (mean age: 74.

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We aimed to evaluate efficiency and safety of transplantation of limbal stem cells (LSC) cultured on human amniotic membrane with no feeders and to compare cultured LSC with limbal tissue transplantation. Thirty eyes with stage III LSC deficiency were treated with autologous (autoLSC) or allogeneic (alloLSC) cultured LSC transplantation (prospective phase II clinical trial; average follow-up time, 72 months) or autologous (autoLT) or allogeneic (alloLT) limbal tissue transplantation (retrospective control group; average follow-up time, 132 months) between 1993 and 2014. The 5-year graft survival defined by absence of recurrence of the clinical signs of limbal deficiency was 71% for autoLSC, 0% for alloLSC, 75% for autoLT, and 33% for alloLT.

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Outer Retinal Alterations Associated With Visual Outcomes in Best Vitelliform Macular Dystrophy.

Am J Ophthalmol

December 2019

Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Centre de Maladies Rares "dystrophies rétiniennes d'origine génétique," Département hospitalo-universitaire Sight Restore, Institut National de la Santé et de la Recherche Médicale, DHOS Centre d'Investigation Clinique 1423, Paris, France; Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Institut de la Vision, Paris, France.

Purpose: To describe outer retinal structure in patients with Best vitelliform macular dystrophy (BVMD) using spectral-domain optical coherence tomography (OCT) and correlate these results with best-corrected visual acuity (BCVA) and patient age.

Design: Retrospective cross-sectional study.

Methods: Patients with molecularly confirmed BVMD were compared with normal control subjects (NCs).

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Importance: Sensitive outcome measures for disease progression are needed for treatment trials of Stargardt disease.

Objective: To estimate the progression rate of atrophic lesions in the prospective Natural History of the Progression of Atrophy Secondary to Stargardt Disease (ProgStar) study over a 12-month period.

Design, Setting, And Participants: This multicenter prospective cohort study was conducted in an international selection of tertiary referral centers from October 21, 2013, to February 15, 2017.

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Purpose: Intraocular pressure leading to glaucoma is a major cause of childhood blindness in developing countries. In this study, we sought to identify gene variants potentially associated with primary congenital glaucoma (PCG) in the Mauritanian population.

Methods: Using next-generation sequencing (NGS), a panel of PCG candidate genes was screened in a search for DNA mutations in four families with multiple occurrences of PCG.

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Indocyanine green angiography for identifying telangiectatic capillaries in diabetic macular oedema.

Br J Ophthalmol

April 2020

Clinical Investigation Center 1423, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Sorbonne University, Paris, France

Aims: During diabetic macular oedema (DME), a spectrum of capillary abnormalities is commonly observed, ranging from microaneurysms to large microvascular abnormalities. Clinical evidence suggests that targeted photocoagulation of large microvascular abnormalities may be beneficial, but their detection is not done in a routine fashion. It was reported that they are better identified by indocyanine green angiography (ICGA) than by fluorescein angiography.

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Background: To decipher the role of monocyte-derived macrophages (Mφs) in vascular remodeling of the occluded vein following experimental branch retinal vein occlusion (BRVO).

Methods: The inflammation induced by laser-induced BRVO on mice retina was evaluated at different time points by RT-PCR looking at inflammatory markers mRNA level expression, Icam-1, Cd11b, F4/80, Ccl2, and Ccr2 and by quantification of Iba1-positive macrophage (Mφ) density on Iba1-stained retinal flatmount. Repeated intraperitoneal EdU injection combined with liposome clodronate-induced monocyte (Mo) depletion in wildtype mice was used to differentiate Mo-derived Mφs from resident Mφs.

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Multimodal imaging of pre-Descemet corneal dystrophy.

Eur J Ophthalmol

September 2020

Service V, Centre Hospitalier National d'Ophtalmologie des XV-XX, Sorbonne Université, Paris, France.

Purpose: The aim of this study was to assess structural and histological changes associated with pre-Descemet corneal dystrophy with multimodal in vivo imaging.

Methods: Retrospective case series including eight corneas from four unrelated male patients with pre-Descemet corneal dystrophy characterized by the presence of punctiform gray opacities located just anterior to the Descemet membrane at slit-lamp examination of both eyes. In vivo confocal microscopy images were obtained in the central, paracentral, and peripheral corneal zones from the superficial epithelial cell layer down to the corneal endothelium in both eyes.

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Purpose: To assess the agreement of decentration measurements between tangential curvature topography and tomography pachymetry difference maps after a small-incision lenticule extraction (SMILE) procedure.

Setting: Yonsei University College of Medicine and Eyereum Eye Clinic, Seoul, South Korea.

Design: Retrospective case series.

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Importance: A precise phenotypic characterization of retinal dystrophies is needed for disease modeling as a basis for future therapeutic interventions.

Objective: To compare genotype, phenotype, and structural changes in patients with rod-cone dystrophy (RCD) associated with mutations in PDE6A or PDE6B.

Design, Setting, And Participants: In a retrospective cohort study conducted in Paris, France, from January 2007 to September 2017, 54 patients from a cohort of 1095 index patients with RCD underwent clinical examination, including personal and familial history, best-corrected visual acuity (BCVA), color vision, slitlamp examination, full-field electroretinography, kinetic visual fields (VFs), retinophotography, optical coherence tomography, near-infrared fundus autofluorescence, and short-wavelength fundus autofluorescence imaging.

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[XEN Gel Stent for management of chronic open angle glaucoma: A review of the literature (French translation of the article)].

J Fr Ophtalmol

April 2019

Service d'ophtalmologie, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Service d'ophtalmologie, université de Versailles Saint-Quentin-en-Yvelines, hôpital Ambroise-Paré, AP-HP, 9, avenue Charles-De-Gaulle, 92100 Boulogne Billancourt, France; Inserm, U968, université UPMC Paris VI, UMR S 968, institut de la vision , CNRS, UMR 7210, 75012 Paris, France. Electronic address:

Purpose: The purpose of this study was to analyze the change in intraocular pressure (IOP) and glaucoma medications using the XEN Gel Stent as a solo procedure or in association with phacoemulsification in patients with chronic open angle glaucoma (OAG).

Methods: We included cohort studies with at least one year of follow-up in patients with primary open angle glaucoma (POAG), pseudo-exfoliative glaucoma (PXG) or pigmentary glaucoma (PG) who received a XEN® gel stent. The main outcome measure was IOP reduction at 12 months follow-up.

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[Corneal decompensation secondary to cosmetic iris implant, treated by DMEK].

J Fr Ophtalmol

March 2019

Service d'ophtalmologie V, centre hospitalier national d'ophtalmologie des Quinze-Vingts, DHU Sight Restore, Inserm-DHOS CIC, Sorbonne université, 75012 Versailles, France; Institut de la Vision, Inserm UMRS 968, Sorbonne université, 75012 Paris, France.

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Choroidal vasculature imaging with laser Doppler holography.

Biomed Opt Express

February 2019

Institut Langevin, Centre National de la Recherche Scientifique (CNRS), Paris Sciences & Lettres (PSL University), École Supérieure de Physique et de Chimie Industrielles (ESPCI Paris), 1 rue Jussieu, 75005 Paris, France.

The choroid is a highly vascularized tissue supplying the retinal pigment epithelium and photoreceptors. Its implication in retinal diseases is gaining increasing interest. However, investigating the anatomy and flow of the choroid remains challenging.

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The development of white matter structural changes during the process of deterioration of the visual field.

Sci Rep

February 2019

Department of Medical Neurobiology, The Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, 91220, Jerusalem, Israel.

Article Synopsis
  • Scientists are studying how the brain changes when people lose their vision, particularly in patients with a condition called retinitis pigmentosa.
  • They looked at two groups: one with some central vision left and another that was completely blind, to see how losing different parts of vision affects the brain's white matter.
  • The results showed that as people lose their vision, the brain reorganizes itself, which might help them adapt to their new way of seeing and improve other senses.
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