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Epidemiological Features of Diabetic retinopathy in Abidjan(Cote d’Ivoire):A Study about 448 Patients

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Open Journal of Ophthalmology 2018年第3期8卷 140-149页

作者： F.X.Kouassi C.E.koman A.N.S.Kra M.Soumahoro T.Y.C.Sowagnon R.N’dohi Ophthalmology Department of Cocody University Hospital Abidjan Cote d’Ivoire Ophthalmology Department of Yopougon University Hospital Abidjan Cote d’Ivoire

Introduction: Diabetic retinopathy is the retinal location of diabetic microangiopathy. It is a public health problem and one of the target diseases of the global Vision 2020 initiative. The aim of our study was to determine the epidemiological features and risk factors of diabetic retinopathy in the melanoderma African in Abidjan. Materials and Methods: We carried out a prospective observational study which took place from April to September 2016 and which focused on the diabetic subjects received in consultation in the Ophthalmology Department of Cocody University Hospital. All Patients had had bio-microscopic examination of the fundus with Goldman three-mirror contact lens and optic coherence tomography of the macula and, in some cases, retinal fluorescein angiography. results: Out of a population of 448 patients, 200 had diabetic retinopathy. That is a prevalence of 45%. The prevalence of macular edema was 6%. The subpopulation of subjects with retinopathy consisted of 61.5% (123) of male patients versus 38.5% (77) of female patients. The mean age of female patients with retinopathy was 42 ± 14.08 years and that of male patients 58 ± 15.07 years. The majority of patients with retinopathy lived in urban areas (73%), and had type II diabetes. The duration of evolution of diabetes was 5 to 10 years in 65% of cases. Obesity, smoking, dyslipidemia and high blood pressure were the main factors of co-morbidity associated with poor glycemic control. Discussion: Diabetic retinopathy had a high prevalence and predominated in males. Maculopathy was represented by macular edema, which is the leading cause of diabetes-related blindness. Conclusion: The prevention of blindness related to diabetes requires regular multidisciplinary follow-up in order to treat retinal damage early.

关键词： Diabetes Fundus retinopathy Maculopathy Optic Coherence Tomography

Ophthalmological Manifestations in Chronic Hemodialyzed Patients:A 132 Cases Study in Abidjan

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Open Journal of Ophthalmology 2019年第1期9卷 9-17页

作者： Francois Xavier Kouassi Chiatse Ellalie koman Massesse Soumahoro Alla N’goran Simeon Kra Liliane Fortunette Angelus Ouonnebo Ange-Aristide Konan Kouakou Cophican Arthur Ulrich Dibi Ophthalmology Department Cocody University HospitalAbidjanCote d’Ivoire Ophthalmology Department Yopougon University HospitalAbidjanCote d’Ivoire

Purpose: The aim of this study was to describe the eye signs seen in patients on chronic hemodialysis at Cocody University Hospital and the factors influencing their occurrence. Material and Methods: We carried out in the Ophthalmology Department of Cocody University Hospital a cross-sectional study over 15 months. It focused on 132 patients on chronic hemodialysis followed in the hemodialysis department of Cocody University Hospital. results: Hypertensive nephropathy was the leading cause of chronic renal failure (58%). The most common ocular functional sign was loss of visual acuity (LVA) (38%), followed by ocular pruritus (22%). Twenty-one percent (21%) of our patients were visually impaired (MAVLC Discussion: Eye manifestations in people with chronic renal failure and on hemodialysis are variable. Several factors are involved, mainly hypertension;first and foremost is hypertension. Correction of these factors is necessary to prevent blindness.

关键词： renal Failure Chronic Hemodialysis Eye Signs

Central Serous Chorioretinopathy and Pregnancy: A Case report

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Open Journal of Ophthalmology 2018年第4期8卷 207-213页

作者： A. N. S. Kra F. X. Kouassi C. E. koman M. Soumahoro T. Y. C. Sowagnon Y. G. Ouffoue Ophthalmology Department of the University Hospital Center of Cocody Abidjan Ivory Coast

Introduction: Central serous chorioretinopathy (CSCR) is a macular retinal serous detachment associated with one or more leak points in the pigment epithelium. We present a case of spontaneous evolution in the 3rd trimester of pregnancy in a primiparous woman. Observation: This was a 27-year-old student, admitted for a sharp drop in visual acuity in the left eye. During the interrogation, a notion of 32 weeks of pregnancy-induced amenorrhea and a context of preparations for end-of-year school exams were noted. Ophthalmological examination revealed visual acuity in the left eye limited to counting the fingers at 3 meters. In the eye fundus, a bubble occupying the macular region of the left eye appeared. The examination of the right eye was strictly normal. The general examination was normal with normal blood pressure. Optical coherence tomography (OCT) brought out a large serous retinal detachment confirming the diagnosis. Faced with this diagnosis of central serous chorioretinopathy, therapeutic abstention with surveillance has been proposed. The delivery route was discussed because of the impact of pushing phases during vaginal delivery on the existing CSCR. Ophthalmologic examination performed 3 months after vaginal delivery was strictly normal with visual acuity at 10/10th and total disappearance of retinal detachment at OCT. Discussion: Central serous chorioretinopathy is a relatively common ocular condition but whose pathophysiology is still controversial. Pregnancy is a known risk factor for central serous chorioretinopathy. The spontaneous resorption of central serous chorioretinopathy during pregnancy is reported in the literature, hence a therapeutic abstention with ophthalmological monitoring. Conclusion: Pregnancy in a primiparous woman is a stress factor that can promote central serous chorioretinitis.

关键词： Central Serous Chorioretinopathy Macula Pregnancy OCT

Colloidal Electronic Cells Based on 2D Materials

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Colloidal Electronic Cells Based on 2D Materials

Epidemiological Particularities and Indications of the Mutilating Surgery of the Eyeball in Abidjan (Ivory Coast)

中国化学会第十七届全国胶体与界面化学学术会议

作者： Pingwei Liu Volodymyr B.koman Albert Tianxiang Liu Juyao Dong Daichi Kazawa Jingfan Yang Max Saccone Song Wang Youngwoo Son Min Hao Wong Michael S.Strano State Key Lab of Chemical Engineering College of Chemical and Biological EngineeringZhejiang University Department of Chemical Engineering Massachusetts Institute of Technology

＜正＞Graphene and other 2D materials possess desirable mechanical and functional properties for incorporation into or onto novel colloidal particles, potentially granting them unique electronic and optical functions. A here-to-fore unexplored property of 2D electronic materials such as graphene, hexagonal boron nitride and MoS2 is the ability to build electronic circuits, transistors, memory and sensors onto or into colloidal particles.

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Open Journal of Ophthalmology 2018年第2期8卷 91-96页

作者： Sowagnon Thierry Yves Constant Bilé Philippe Emile France Koffi Irie Bi Gohi Serge koman Chatsé Ellalie Diomandé Gossé Francois Kra Alla N’goran Simé on Konan Manmi Sienou Marguerite Pascaline Dé tchi Honorat Koné Safé dé Kouassi Francois Xavier Ophthalmology Department of the University Hospital Center of Yopougon Yopougon Ivory Coast Ophthalmology Department of the University Hospital Center of Bouake Bouake Ivory Coast Anesthesia and resuscitation Department of the University Hospital Center of Bouake Bouake Ivory Coast Ophthalmology Department of the University Hospital Center of Cocody Cocody Ivory Coast

Objective: To describe the epidemiological profile and indications of mutilating eyeball surgery in Abidjan. Patients and methods: This is a retrospective descriptive study on the files of eviscerated, enucleated or exentered patients in the Ophthalmology Department of the University Hospital of Yopougon from January 2010 to December 2016. The parameters studied were: socio-demographic characteristics, indications of mutilating surgery, anesthetic technique, operative technique and patient evolution. results: During the study period, 59 patients underwent surgery for mutilating eye surgery out of a total of 11,114 procedures, a frequency of 0.53%. The average age of the patients was 31 years with extremes of 3 years and 67 years. Men predominated in 62.1% of cases with a sex ratio of 1.64. Patients came from rural areas in 68.5% of cases. The main indications of the mutilating surgery were: post-inflammatory phthisis (58.6%) and tumoral affections (29.31%). Evisceration was the most common operative technique (67.2%). In 68% of cases the interventions were performed under peribulbar anesthesia. Patients with evisceration (67.2%) and enucleation (5.1%) all benefited from prosthetic equipment. Conclusion: The mutilating surgery of the eyeball is responsible for serious psychological and sociological impacts. The seriousness of these repercussions requires primary prevention through early and adequate management of eye conditions.

关键词： Mutilating Surgery Anesthesia Evisceration Enucleation Exenteration