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Dive into the research topics where Jean-Remi Fenolland is active.

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Featured researches published by Jean-Remi Fenolland.


British Journal of Ophthalmology | 2014

Reproducibility of macular ganglion cell-inner plexiform layer thickness measurement with cirrus HD-OCT in normal, hypertensive and glaucomatous eyes.

M Francoz; Jean-Remi Fenolland; Jean-Marie Giraud; Hussam El Chehab; Damien Sendon; F. May; Jean-Paul Renard

Aim To evaluate the intraobserver and interobserver reproducibility of macular retinal ganglion cell–inner plexiform layer (GC–IPL) thickness measurement by automated detection on Optical Coherence Tomography (OCT) images in normal, hypertensive (ocular hypertensive (OHT)) and glaucomatous eyes. Methods A total of 138 eyes were enrolled in three groups: 69 normal, 35 OHT and 34 primary open-angle glaucoma eyes. All patients underwent a complete ocular examination, 24-2 automated perimetry, biometry and pachymetry. Macular imaging was performed in each eye using the Cirrus HD-OCT 4000 with software V.6.0. (Carl Zeiss Meditec, Dublin, California, USA) three times on the same day by each of two observers, and the GC analysis (GCA) algorithm provided parameters expressed as average, minimum and six sectoral GC-IPL thicknesses. Reproducibility was assessed by intraclass correlation coefficient (ICC), coefficient of variation (CV) and test-retest variability (TRTV) calculated as 1.96 times the SD. Results Mean GC–IPL thickness was 82.27±7.37 μm, 76.84±7.01 μm and 66.16±11.16 μm in normal, OHT and glaucoma groups, respectively. GC–IPL thickness was significantly lower in glaucomatous eyes than in normal and OHT eyes (p<0.0001 for all parameters). In all groups, ICC ranged from 96.4 to 99.9% and 92.5 to 99.8%, CV ranged from 0.41 to 2.24% and 0.55 to 1.67%, and TRTV ranged from 0.61 to 2.64 μm and 0.83 to 2.22 μm for intraobserver and interobserver reproducibility, respectively. Conclusions To the best of our knowledge, this is the first study of GCA algorithm reproducibility in normal, OHT and glaucomatous eyes. The reproducibility of GC–IPL thickness measurements using the Cirrus HD-OCT GCA algorithm was found to be highly satisfactory. GC–IPL thickness may be a promising new OCT parameter for analysis of ganglion cell damage in glaucoma.


Journal Francais D Ophtalmologie | 2011

Évaluation de l'épaisseur choroïdienne par tomographie en cohérence optique (SD-OCT). Étude préliminaire dans le glaucome à angle ouvert

Jean-Remi Fenolland; Jm Giraud; F. May; A. Mouinga; S. Seck; J.P. Renard

INTRODUCTION Choroidal thickness (CT) can be evaluated with spectral domain OCT. The authors report the results from a preliminary study comparing CT in normal and glaucomatous eyes. PATIENTS AND METHOD The aim of this study was to measure subfoveolar CT in normal and glaucomatous eyes and to evaluate the recent enhanced depth imaging technique (EDI SD-OCT). Seventeen eyes of nine healthy subjects where compared with 23 eyes of 14 glaucomatous patients. CT was evaluated using a Spectralis™ OCT. A section was obtained within a 30° scan centered on the fovea, with 100 scans averaged for each section. Two acquisitions were made for each eye by the same operator to obtain an average CT measurement. The results were compared with clinical examination data (refractive error, peripapillary atrophy, and age). RESULTS There was a strong correlation between the two measurements r=0.99 (p<0.001). The mean age of the healthy group was 72.76±7.71 years, the mean refractive error was 0.71±0.74 D, and peripapillary atrophy was present in 29% of the eyes. The mean subfoveal CT was 224.38μm. The mean age of the glaucomatous group was 71.39±11.37, the mean refractive error was-1.37±2.74 D, and peripapillary atrophy was present in 70% of the eyes. The mean subfoveal CT was 219.98μm. There was no significant difference between the two populations for the subfoveolar CT or refractive errors. In both groups, there was a negative correlation between CT and peripapillary atrophy. In healthy eyes, peripapillary atrophy was correlated with age (p<0.001), whereas it was not in the glaucomatous population (p=0.795). DISCUSSION This is the first study, to our knowledge, evaluating EDI OCT in glaucomatous eyes. Reproducibility was excellent. There was always a negative correlation between CT and peripapillary atrophy. There was no CT difference between the normal and glaucomatous group, but the number of patients was small. CONCLUSION Further studies are required to evaluate the possible relationship between CT and peripapillary atrophy and the link with the evolutive stage of the glaucomatous neuropathy.


JAMA Ophthalmology | 2017

Inadvertent Subconjunctival Injection of a Dexamethasone Implant

Jean-Remi Fenolland; Mickael Sigaux; Jean-Marie Giraud

Delivery of a dexamethasone intravitreal implant (Ozurdex, Allergan) was planned for a man in his 60s with postsurgical cystoid macular edema. Best-corrected visual acuity was 20/60 OD and central subfield thickness was 553 μm. The injection was accidentally performed in the subconjonctival space (Figure, A). The device broke into 3 parts but it was not removed. Intraocular pressure did not exceed 17 mm Hg without treatment during a close follow-up, but 3 weeks later, the patient developed an endothelial decompensation. Best-corrected visual acuity dropped to 20/200 OD and the implant was surgically removed immediately. Bestcorrected visual acuity was 20/60 OD with a clear cornea by 15 days after removal of the implant and a combination of dimethicone drops and hyperosmotic sodium chloride drops. Another dexamethasone intravitreal implant was given 45 days after removal of the implant (visual acuity, 20/60 OD; central subfield thickness, 485 μm) and macular edema was noted to have resolved by 7 days after implantation (visual acuity, 20/30 OD; central subfield thickness, 305 μm).


Journal Francais D Ophtalmologie | 2010

Neuropathie optique glaucomateuse unilatérale atypique chez un sujet jeune

Jean-Remi Fenolland; Jean-Marie Giraud; F. May; R. Dariel; O. Hamam; A.M. Sadat; J.P. Renard

BACKGROUND Diagnostic and therapeutic problems are common in cases of unilateral optical neuropathy with elevated intraocular pressure (IOP) CASE REPORT: A 17-year-old boy was referred for visual acuity loss and elevated IOP at 40mmHg in his left eye. Juvenile open-angle glaucoma (JOAG) was diagnosed based on the clinical and paraclinical examinations. In spite of a maximal hypotensive treatment, tensional control was insufficient and a filtering surgery procedure was necessary. IOP control was good 6 months after surgery, but functional and anatomical analysis showed neuropathic progression and a bilateralization of the disease. CONCLUSION The diagnosis of JOAG is difficult and sometimes delayed. Secondary bilateralization commonly causes diagnostic problems which can delay specific and appropriate management. Systematic screening should be performed during infancy when a strong family history of glaucoma is known.


Journal Francais D Ophtalmologie | 2009

657 L’oxygénothérapie hyperbare au stade précoce d’occlusion veineuse rétinienne

K. Reda; Jean-Marie Giraud; Jean-Remi Fenolland; R. Dariel; A. Nicaise; F. May; J.F. Maurin; J.P. Renard

Introduction Plusieurs etudes recentes rapportent une efficacite de l’oxygenotherapie hyperbare (OTHB) dans le traitement des occlusions veineuses retiniennes (OVCR), par un effet benefique de la fraction dissoute de l’oxygene circulant, ainsi obtenue. Materiels et Methodes Les auteurs rapportent les resultats d’un cas d’OVCR traite par OTHB chez un homme de 40 ans qui consulte pour une baisse d’acuite visuelle brutale de l’œil gauche evoluant depuis 4 jours, avec une acuite visuelle de 2/10 faible, P8 non ameliorable. L’examen du segment anterieur est sans anomalie, et on objective au fond d’œil un tableau d’occlusion veineuse retinienne temporale inferieure, avec des veines dilatees, des hemorragies diffuses, associees a un important œdeme maculaire et papillaire. L’examen de l’œil droit, avec une acuite visuelle a12/10 P2, est normal. L’examen en tomographie par coherence optique (OCT) objective l’œdeme maculaire gauche d’une epaisseur de 563 μ associe a un decollement sereux sous retinien. L’angiographie fluoresceinique confirme le tableau d’OVCR de forme œdemateuse isolee. Le bilan paraclinique, chez ce patient sportif et en bon etat general ne retrouve aucun facteur de risque. Une OTHB est debutee a J8, 23 seances de 1 H 30 sur 18 jours. Un suivi quotidien clinique et para clinique la 1 re semaine, puis bi hebdomadaire, rapporte une nette amelioration de l’acuite visuelle a 6/10 P2 des la 4 e seance d’OTHB et une diminution de l’epaisseur maculaire relevee a l’OCT. L’evolution a moyen et long terme est analysee. Discussion Differentes etudes recentes montrent l’effet benefique de l’OTHB a un stade precoce et/ou tardif des œdemes maculaires des OVCR. Cet effet benefique est explique par une vasoconstriction induite par l’oxygene a l’origine d’une diminution de la diffusion intra retinienne. A partir de cette observation, les auteurs discutent les resultats obtenus avec les donnees de la litterature sur l’interet de cette demarche therapeutique dans la prise en charge precoce des tableaux d’OVCR. Conclusion L’effet benefique de l’OTHB est decrit dans un cas d’œdeme maculaire precoce au cours d’une OVCR. L’interet de ce traitement dans le suivi et le pronostic a long terme de ces tableaux cliniques reste a evaluer.


Journal Francais D Ophtalmologie | 2009

493 Imagerie par tomographie en cohérence optique dans la surveillance des trous maculaires : un apport bénéfique

R. Dariel; Jean-Marie Giraud; Jean-Remi Fenolland; K. Reda; A. Nicaise; F. May; J.F. Maurin; J.P. Renard

Introduction L’apport de la tomographie en coherence optique (OCT) a permis une meilleure connaissance des trous maculaires idiopathiques, ainsi qu’un meilleur suivi des differentes etapes de leur evolution. Objectifs et Methodes Les auteurs rapportent le cas d’une patiente de 60 ans qui consulte pour une baisse d’acuite visuelle bilaterale recente progressive, chiffree a 3/10 p8 avec metamorphopsies pour l’œil droit et 5/10 p3 a gauche. L’examen du segment anterieur est normal. Au niveau du pole posterieur il ne releve aucune anomalie maculaire notable ni signe de decollement posterieur du vitre (DPV). Devant cette baisse d’acuite visuelle bilaterale avec metamorphopsies, apparemment isolee, un examen par OCT objective a droite : un trou maculaire stade 1B avec un aspect kystique intraretinien foveolaire, sans mise en relation du toit du kyste et de la cavite vitreenne. A gauche, il objective un trou maculaire de stade 1A, avec kyste foveolaire intraretinien a distance de l’EP associe a un DPV debutant. Resultats Une surveillance clinique et tomographique reguliere rapporte, a 2 mois, une amelioration progressive au niveau de l’acuite visuelle de l’œil gauche (7/10 P2) et confirme en OCT la fermeture spontanee du trou maculaire contemporaine du DPV qui s’est constitue entre temps. A droite, l’acuite est inchangee avec persistance d’une adherence vitreo-retinienne foveolaire. L’examen en OCT rapporte chez ce patient l’evolution a long terme avec resorption complete a gauche et resolution progressive a droite des kystes intra retiniens. Discussion La fermeture spontanee des trous maculaires est une evolution pouvant survenir dans un faible nombre de cas avant que le trou maculaire soit de pleine epaisseur. Elle survient lorsque l’adherence vitreo-retinienne cede avant l’ouverture du toit du kyste. L’OCT permet, de maniere non invasive, un suivi regulier et precis de l’evolution des trous maculaires et permet ainsi de mieux poser l’indication operatoire. Le risque de bilateralisation varie entre 1 et 27 %. L’OCT permet de depister des trous maculaires pauci-symptomatiques et apporte une aide precieuse au pronostic. Conclusion Cette observation presente l’interet de demontrer l’apport de l’imagerie en OCT, realisee chez ce patient regulierement pendant 6 mois, dans le suivi des trous maculaires. Elle ameliore la prise en charge, le suivi et le pronostic des trous maculaires, quelque soit leur stade.


Journal Francais D Ophtalmologie | 2010

L’adhérence au traitement dans le glaucome

J.P. Renard; Jean-Marie Giraud; Jean-Remi Fenolland; F. May


Investigative Ophthalmology & Visual Science | 2012

Heidelberg Edge Perimetry: evaluation of the Flicker Defined Form test, versus Matrix, in normal and glaucoma subjects

Frank May; Jean-Marie Giraud; M Francoz; Hussam El Chehab; Jean-Remi Fenolland; Damien Sendon; Charlotte Denier; Fouad El Asri; Mamour Dieng; Jean-Paul Renard


Investigative Ophthalmology & Visual Science | 2010

Analysis of Progression With GPA (Guided Progression Analysis) and Mean Deviation (MD) Indexes of Automated Perimetry in Ocular Hypertension and Glaucoma

Jean-Marie Giraud; F. May; G. Manet; Jean-Remi Fenolland; J.-B. Meynard; A.-M. Sadat; A. Mouinga; S. Seck; J.-P. Renard


Investigative Ophthalmology & Visual Science | 2016

Insomnia Severity Index and sleeping disorders. Comparison in OHT, Glaucoma and Control patients. First results

Jean-Marie Giraud; Jean-Remi Fenolland; Damien Sendon; Bernard Valero; Corinne Dot; Jean-Paul Renard; Hussam El Chehab

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M Francoz

Jean Monnet University

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Charlotte Denier

Necker-Enfants Malades Hospital

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Markus A. Mayer

University of Erlangen-Nuremberg

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