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Featured researches published by I. Cochereau.


Journal Francais D Ophtalmologie | 2006

Description des pratiques pour la réalisation des injections intravitréennes

Jean-François Korobelnik; I. Cochereau; Salomon Y. Cohen; Gabriel Coscas; Catherine Creuzot-Garcher; F. Devin; A. Gaudric; A. Mathis; Martine Mauget-Faÿsse; José-Alain Sahel; G. Soubrane; E. Souied; M. Weber

Drugs to treat retinal diseases are often injected intravitreally. This procedure can cause severe complications. We present ways to minimize the risk for complications. Rigorous preoperative antisepsis with povidone iodine, a sterile environment (using gloves and a mask for the injector, a lid speculum, and a drape on the eye to be injected), and immediate follow-up after injection are key issues of the injection technique.


Journal Francais D Ophtalmologie | 2006

Manifestations neuro-ophtalmologiques révélatrices d’une neuro-sarcoïdose

C. Lamirel; I. Badelon; Olivier Gout; Karine Berthet; F. Heran; Laurent Laloum; I. Cochereau; Alain Gaudric; Marie-Germaine Bousser; C. Vignal-Clermont

But Nous decrivons dans cet article les manifestations neuro-ophtalmologiques inaugurales d’une neuro-sarcoidose : leur presentation clinique, les moyens du diagnostic, le traitement et l’evolution. Patients et methodes Etude retrospective de treize patients avec des manifestations neuro-ophtalmologiques revelant une sarcoidose qui ont consulte dans 3 centres differents de 1997 a 2003. Resultats Il s’agissait de 10 femmes et 3 hommes, d’un âge moyen de 36 ans. Six patients presentaient une diplopie : le sinus caverneux etait infiltre dans 3 cas, les trois autres patients avaient une meningo-radiculite. Une atteinte des voies visuelles anterieures etait notee chez 9 patients : 5 patients avaient une neuropathie optique, 2 patients une infiltration du chiasma et 2 patients un œdeme papillaire de stase. Deux patients presentaient les deux symptomes. Le dosage de l’enzyme de conversion de l’angiotensine etait eleve dans 6 cas sur 11. Le liquide cerebro-spinal etait anormal dans 7 cas sur 9. La radiographie et le scanner thoracique montraient des anomalies dans 9 cas (sur les 11 examens realises). Dans 10 cas, le diagnostic de sarcoidose fut conforte par l’examen histologique. Pour les trois autres cas, ce diagnostic reste le plus probable. Tous les patients ont ete traites avec des corticoides systemiques. Toutes les diplopies ont entierement regresse. Concernant les 7 patients avec une neuropathie optique ou une infiltration chiasmatique, 1 patient a completement recupere, 2 ont eu une amelioration partielle, et 4 n’ont presente aucune amelioration. Conclusion Les diplopies et les atteintes des voies visuelles anterieures peuvent reveler une neuro-sarcoidose. Ce diagnostic doit donc etre evoque devant ces signes frequents en neuro-ophtalmologie. Un bilan complementaire est necessaire au diagnostic avec, au mieux, une preuve histologique. Le traitement repose sur la corticotherapie. L’evolution est en general favorable, meme si des rechutes peuvent survenir.


Journal Francais D Ophtalmologie | 2011

Antibioprophylaxie en chirurgie ophtalmologique. À propos des recommandations de l’AFSSAPS

I. Cochereau; Jean-François Korobelnik; P.-Y. Robert; J. Hajjar

According to the literature and to the advice of experts, the French Agency for the Safety of Health Products (AFSSAPS) edited recommendations about the antibioprophylaxis in ocular surgery. One goal was to avoid the extensive use of oral and topical fluoroquinolones in antibioprophylaxis, in order to preserve their antibacterial activity for curative treatments of severe eye infections. The medical team decides for the indication and the type of antibioprophylaxis for each patient. A topical antibiotic is recommended for any eye surgery until the etancheity of incisions. Due to the risk of selection of bacterial resistance topical fluoroquinolones are not recommended in this indication. In open eye surgery, an additional antibioprophylaxis is recommended: in cataract surgery, injection in the anterior chamber at the end of the procedure of 1mg of cefuroxime; in other open eye surgeries, only in case of risk factors for endophthalmitis, administration of 500 mg oral levofloxacin tablet 12 hours and two hours before surgery. For ocular punctures and intravitreal injections, only a topical postoperative antibiotic is recommended until healing.


Journal of Neurology, Neurosurgery, and Psychiatry | 2010

Papilloedema and MRI enhancement of the prechiasmal optic nerve at the acute stage of Leber hereditary optic neuropathy

C. Lamirel; Julien Cassereau; I. Cochereau; Catherine Vignal-Clermont; Olivier Pajot; Jean-Yves Tanguy; Xavier Zanlonghi; Pascal Reynier; Patrizia Amati-Bonneau; Frédéric Dubas; Dominique Bonneau; Christophe Verny

The authors report a case of one patient from a family carrying the homoplasmic Leber hereditary optic neuropathy (LHON) G11778A mitochondrial DNA mutation with papilloedema 9 months prior to the acute stage of LHON and still present at the onset of visual loss. During the vision loss, the MRI demonstrated a T2 hyperintensity and an enhancement of the prechiasmal left optic nerve, suggesting the existence of an inflammatory mechanism. A retrospective review of the chart of two others members of the same family, with bilateral optic disc oedema at onset of the vision loss, suggests that the relationship of papilloedema and acute phase of LHON may not be just a coincidence, at least in this family. The visual loss related to LHON could have been triggered in the setting of the chronic papilloedema, associated with the intracranial hypertension.


Ophthalmic Research | 2014

Visual Impairment and Hip Fractures: A Case-Control Study in Elderly Patients

Patrick Loriaut; Philippe Loriaut; Patrick Boyer; Philippe Massin; I. Cochereau

Aims: To investigate the relationship between visual impairment and fall-related hip fracture and to determine the etiology of visual impairment in a population of elderly patients with hip fracture. Methods: A case-control study compared 96 patients diagnosed with hip fracture to a randomly selected control group of 103 patients without hip fracture. Inclusion criteria for the case group were as follows: patients aged 60 years and over with a hip fracture. Clinical assessment included visual acuity and ophthalmic examination. Results: Forty-three patients with hip fracture had a visual impairment compared to only 12 patients in the control group. Visual impairment was a significant risk factor for hip fracture (OR = 6.15; 95% CI 2.98-12.69). Twenty-seven hip fracture patients had an uncorrected refractive error compared to only 15 controls (OR = 2.78; 95% CI 0.92-8.35). There was no significant difference of dense cataract between both groups (OR = 2.28; 95% CI 0.75-6.93). Fourteen hip fracture patients had a macular degeneration compared to only 8 controls (OR = 5.63; 95% CI 1.57-20.18), and 10 patients had suspicion of glaucoma compared to only 5 controls (OR = 10.65; 95% CI 2.21-51.3). Conclusion: Visual impairment was significantly associated with an increased risk of hip fracture in elderly people. There are many etiologies that may contribute to hip fractures, most notably refractive error, cataract, macular degeneration and glaucoma.


The Journal of Rheumatology | 2009

Eye loss by exogenous endophthalmitis following anti-tumor necrosis factor therapy: a report of 3 cases.

Benoit Le Goff; Bertrand Vabres; I. Cochereau; Béatrice Bouvard; C. Lamirel; Yves Maugars; Jean-Marie Berthelot

Infectious endophthalmitis is a serious infection of intraocular fluids and tissues, which often leads to loss of vision1. It can be classified as exogenous or endogenous according to the mechanism of infection. Endogenous endophthalmitis results from hematogenous spread of organisms to the eye, whereas exogenous endophthalmitis occurs due to direct infection of the eye following surgery or penetrating trauma2. Anti-tumor necrosis factor-α (TNF-α) drugs are a highly effective treatment for rheumatoid arthritis (RA) and ankylosing spondylitis (AS) but increase the rate of soft tissue and skin infections3. However, only a few cases of severe eye infection have been reported4-8. We describe 3 patients who developed exogenous endophthalmitis during treatment with anti-TNF-α. Patient 1. A 36-year-old woman had a history of 11 years of erosive RA. She had right facial palsy secondary to facial trauma, leading to difficulty completely closing her right eye. Her RA remained active despite conventional disease modifying antirheumatic drugs (DMARD). Infliximab (3 mg/kg) was therefore started in January 2003, together with methotrexate (MTX; 15 mg/wk) and prednisolone (10 mg/day). This led to a marked improvement of RA. In May 2004, 10 days after the eleventh infusion, she complained of an acute pain in her right eye associated with vision loss. She had a red eye upon examination, associated with a corneal ulceration and hypopyon. Infliximab was discontinued and a vitreous biopsy was performed. Gram staining of vitreous fluid was positive for Pseudomonas aeruginosa. Despite intravenous and intraocular antimicrobial therapy, she developed a corneal opacification leading to complete loss of vision (no light perception; Figure 1). She underwent further evisceration and received an eye prosthesis.


Eye | 2011

Diagnosis of fungal keratitis by in vivo confocal microscopy: a case report

Antoine Labbé; Eric E. Gabison; I. Cochereau; Christophe Baudouin

Sir, Fungal keratitis (FK) is a severe blinding eye disease and a major cause of ocular morbidity.1 The clinical features of FK are not specific and the diagnosis is frequently not suspected until an aggressive treatment for bacterial, viral, or amebic keratitis has failed.


Ophthalmic Research | 2014

Contents Vol. 52, 2014

Luz María Vásquez; Ramón Medel; Patrick Loriaut; Philippe Loriaut; Patrick Boyer; Philippe Massin; I. Cochereau; Sertan Goktas; Rabia Sakarya; Ender Erdogan; Yasar Sakarya; Muammer Ozcimen; Duygu Dursunoglu; Metin Kocacan; Ismail Alpfidan; Erkan Erdogan; Abdulkadir Bukus; Ismail Senol Ivacık; Karine Astruc; Catherine Creuzot-Garcher; Till Martin-Phipps; J. Beynat; Karima Brassac; Alain M. Bron; Xin Wang; Caihui Jiang; Ying Zhang; Yan Gong; Xiaofei Chen; Maonian Zhang

175 SIRCOVA-OFTARED-RIG Joined Congress Abstracts Valencia (Spain), November 7–8, 2014 (online only) 239 Acknowledgement to Referees


Journal Francais D Ophtalmologie | 2009

389 Greffe de membrane amniotique dans l’ulcère cornéen chronique

D. Gautier; C. Marechal; A. Lecq; G. Jallet; S. Cornu; I. Cochereau

Objectif Nous avons voulu evaluer l’efficacite de la greffe de membrane amniotique dans les ulceres corneens chroniques. Materiels et Methodes Etude retrospective sur 3 ans, incluant l’ensemble des membranes amniotiques greffees pour ulcere corneen chronique depuis 2006, evaluant l’antalgie, le confort, la cicatrisation lesionnelle et l’allegement du traitement. Resultats Cinquante-cinq greffes ont ete realisees chez 41 patients avec un sex ratio de 1. L’âge moyen est de 72 ans (18-96) dont 68 % de plus de 70 ans. Le recul moyen etait de 12 mois. Parmi ces ulceres chroniques, 13 % etaient surinfectes. Les principales etiologies etaient : une decompensation corneenne (73 %) sur keratoplastie (27 %), post-operatoire (20 %), d’une keratite herpetique (10 %), d’une dystrophie corneenne (12 %), une ischemie limbique par brulure chimique (10 %). Le delai moyen de l’indication operatoire etait de 10 semaines, dont 49 % inferieur a 3 semaines. Tous portaient une lentille pansement, maintenue jusqu’a l’ablation des fils realisee en moyenne a 2 mois et 7 jours. L’acuite visuelle initiale etait Discussion Chez des sujets âges peu mobilisables, polymediques, la greffe de membrane amniotique est une alternative valable aux keratoplasties, meme si elle n’apporte pas de gain fonctionnel. Conclusion Les benefices de la greffe amniotique poussent a l’utiliser de plus en plus precocement devant un ulcere corneen chronique, ce d’autant qu’il survient sur une cornee deja pathologique.


Journal Francais D Ophtalmologie | 2009

631 Intérêt de l’examen ophtalmologique dans l’épilepsie de l’enfant : à propos d’un cas de syndrome d’Aicardi

C. Marechal; M. Barth; J.M. Ebran; O. Pajot; D. Bonneau; I. Cochereau

Introduction L’examen ophtalmologique de l’enfant peut orienter le diagnostic d’un tableau polymalformatif ou clinique complexe, notamment congenital. A ce titre, la collaboration entre le geneticien clinicien et l’ophtalmologiste peut etre fructueuse. Materiels et Methodes Une fillette de 3 mois etait hospitalisee pour des spasmes en flexion associes a une regression psychomotrice. L’EEG confirmait une forme d’epilepsie de l’enfant, le syndrome de West, en montrant une hypsarythmie. L’IRM evoquait initialement une sclerose tubereuse de Bourneville ; cependant l’examen cutane, les echographies cardiaque et renale etaient normales. De plus, il n’existait pas de calcification intracerebrale et le sequencage des genes TSC1 et TSC2 etait normal. Observation En revanche, le fond d’œil a permis le diagnostic en montrant des lacunes chorioretiniennes et une atrophie optique bilaterales evoquant un syndrome d’Aicardi. Transmis selon un mode dominant lie a l’X, ne touchant que les filles, ce syndrome est caracterise par la triade : agenesie du corps calleux, lacunes chorio-retiniennes et spasmes infantiles. A l’IRM il existait une dysgenesie du corps calleux et un kyste du troisieme ventricule. De nouvelles etudes genetiques retrouvaient des anomalies sur le bras court d’un chromosome X. Discussion Le syndrome de West, forme rare d’epilepsie du nourrisson est dit idiopathique dans 32 % et syndromique dans 68 % des cas. Des lesions retiniennes specifiques peuvent faire evoquer des causes specifiques de ce syndrome : sclerose tubereuse de Bourneville, syndrome d’Aicardi, pathologies mitochondriales et certaines maladies metaboliques. Conclusion L’examen ophtalmologique doit etre systematique dans le bilan d’un syndrome de West. En effet, il peut apporter des elements d’orientation etiologique majeurs et guider le choix des examens paracliniques.

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Catherine Creuzot-Garcher

Institut national de la recherche agronomique

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M. Weber

University of Nantes

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Luz María Vásquez

Autonomous University of Barcelona

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