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Open Journal of Ophthalmology 2021年第2期11卷 143-151页

作者： kokou messan amedome Kassoula Batomaguéla Nonon Saa Kossi Dzidzinyo kokou Vonor Nidain Maneh Koffi Didier Ayena Komi Balo Centre Hospitalier Universitaire de Kara Kara Togo Centre Hospitalier Universitaire Sylvanus Olympio de Lomé Lomé Togo Centre Hospitalier Régional de Kara Tomdè Kara Togo Centre Hospitalier Universitaire Campus de Lomé Lomé Togo Hô pital de Bè Lomé Lomé Togo

Background: Large papillary excavations constitute a true differential diagnosis of glaucoma in our environments. Aim: To present a clinical case of large papillary excavation simulating glaucomatous optic neuropathy in a young subject. Case Presentation: The ophthalmologic examination made it possible to note a visual acuity of LogMar 0.00, ocular hypertonia and a large papillary excavation in both eyes. The visual field noted bilateral perimetric involvement suggesting optic neuropathy. Optical coherence tomography (OCT) of the ganglion complex revealed an absence of involvement of the ganglion complex and the ganglion ridge essential to evoke optic neuropathy. An ocular hypotonizing treatment made it possible to normalize the intraocular pressure. Conclusion: The particularity of this observation lies in the fact that the perimeter involvement that preceded any involvement can simulate a glaucomatous involvement. Functional damage to the visual field must be correlated with structural damage to suggest glaucomatous damage in our ophthalmic patients.

关键词： Large Excavation Optic Neuropathy Glaucoma OCT Kara

Does Eye Camp Contribute to the Fight against Blindness? Experience of the Central Region in Togo

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Open Journal of Ophthalmology 2017年第3期7卷 196-203页

作者： Kassoula Batomaguela Nonon Saa Nidain Maneh messan kokou amedome kokou Vonor Kossi Dzidzinyo Koffi Didier Ayena Komi Patrice Balo Eye Department of Sokode Faculty of Health Sciences University of Lome Lome Togo Eye Department of Lome Faculty of Health Sciences University of Lome Lome Togo Eye Department of Kara Faculty of Health Sciences University of Lome Lome Togo

Aim: To evaluate results of cataract surgery in Eye Camp in rural areas. Patients and Method: This study set about the retrospective analysis of cases and operating reports of patients over the age of 10, operated for cataract in Eye Camp and fixed strategy from January, 2010 to December, 2012. Postoperative data were specified and compared. Results: Out of a total of 1145 patients operated, 577 (50.40%) were men compared with 568 (49.60%) women. The general mean age was 62 years, similar in Eye Camp and in fixed strategy. Sixty percent of patients were operated in Eye Camp. After 4 weeks of follow-up, 77% of patients were met again, and 83% among them showed good results (corrected visual acuity = 3/10). This rate of good results was 80.43% in Eye Camp against 87.7% in fixed strategy. We noted 18.25% of complications among which 11.25% were in Eye Camp. The functional outcomes of both strategies get closer to WHO standards. Conclusion: Eye Camp in the Central Region of Togo is an interesting alternative that contributes to the fight against blindness, even if postoperative follow-up is still to be improved.

关键词： Cataract Surgery Eye Camp Functional Outcomes

Place of Ocular Ultrasound in the Diagnosis of Optic Disc Druses in Developing Countries: About a Case and Review of the Literature

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Open Journal of Ophthalmology 2021年第4期11卷 325-331页

作者： kokou messan amedome kokou Vonor Codjo Rodrigue Abel Assavédo Nidain Maneh Massaga Dagbe Kossi Dzidzinyo Koffi Didier Ayéna Komi Balo Centre Hospitalier Universitaire de Kara Kara Togo Centre Hospitalier Régional de Kara Tomdè Kara Togo Centre Hospitalier Départemental Borgou-Alibori Parakou Benin Centre Hospitalier Universitaire Campus de Lomé Lomé Togo Centre Hospitalier Universitaire Sylvanus Olympio de Lomé Lomé Togo Hô pital Secondaire de Bè Lomé Togo

Background: Druses of the papilla constitute abnormal deposits of calcified hyaline material at the level of the head of the optic nerve. They can be superficial or deep. Aim: The aim of this study is to show the utility of ocular ultrasound in ophthalmology in underdeveloped countries for the characterization of optic disc druse. Case Presentation: Our study relates to a clinical observation of buried papillary druses diagnosed by ocular ultrasound. The ophthalmologic examination revealed an aspect of false papillary edema in the fundus. The ocular ultrasound revealed hyperechogenic deposits buried in the papillary margins, which suggests the deep papillary druses. Conclusion: Ocular ultrasound still has a prominent place in the diagnosis of certain eye conditions despite the new sophisticated means available to ophthalmology to date.

关键词： Ultrasound Druses Hyperechoic Globe

Knowledge, Attitudes and Practices of Health Care Staff about Glaucoma in Lomé

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Open Journal of Ophthalmology 2021年第2期11卷 163-175页

作者： messan kokou amedome Yao Ako Patrick Mensah kokou Vonor Nidain Maneh Kossi Dzidzinyo Kassoula Batomaguéla Nonon Saa Koffi Didier Ayena Komi Balo Centre Hospitalier Universitaire de Kara Kara Togo Hô pital de Bè Lomé Lomé Togo Centre Hospitalier Régional de Kara-Tomdè Kara Togo Centre Hospitalier Universitaire Campus de Lomé Lomé Togo Centre Hospitalier Universitaire Sylvanus Olympio de Lomé Lomé Togo

Introduction: Glaucoma is a major cause of irreversible blindness worldwide. Early detection and awareness are essential to reduce the impact on eye health. The aim of this study is to assess the knowledge, attitudes and practices of health care staff about glaucoma in Lomé. Materials and Methods: This was a prospective cross-sectional and descriptive study including health care staff in Lomé, from October 1st to December 31st, 2020, for a period of 3 months. After their agreement, the officers responded to questions based on a survey sheet. Results: A total of 169 agents from 3 centers in Lomé, i.e. the Sylvanus Olympio University Teaching Hospital, the Campus University teaching Hospital and the Bè Hospital were involved. 50.9% of the agents were male versus 49.1% female, i.e. a ratio of 1.04. The average age was 33.66 ± 10.45 years. 46.10% were doctors versus 53.90% paramedics. 58.60% had at most 5 years of experience against 41.40% who had more than 5 years of experience. 53.80% defined glaucoma as ocular hypertension while 17.20% defined it as optic nerve disease. 46.20% did not know that there were many types of glaucomas compared to 53.20% who knew that there are many types of glaucomas. 92.30% knew that glaucoma can lead to cause visual loss. Regarding attitudes and practices about glaucoma, 91.70% declared that the follow-up should be done by the ophthalmologist, 81.10% thought that it would be necessary to be checked by the doctor only every 6 months. Finally, 65.08% declared that they had to use eye drops for life for the treatment. Conclusion: Steps should be taken to educate staff more about glaucoma attitudes and practices and also plan for action in the population.

关键词： Knowledge Attitude Practice Glaucoma Lomé

Bilateral Iris Coloboma Revealed by a Decreased Vision: About the First Case in Togo Observed in Kara University Teaching Hospital

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Open Journal of Ophthalmology 2021年第4期11卷 249-252页

作者： kokou messan amedome Codjo Rodrigue Abel Assavédo Yao Ako Patrick Mensah Kossi Dzidzinyo kokou Vonor Koffi Didier Ayéna Komi Balo Centre Hospitalier Universitaire de Kara Kara Togo Centre hospitalier départemental Borgou-Alibori Parakou Benin Centre Hospitalier Universitaire Sylvanus Olympio Lomé Togo Centre Hospitalier Régional de Kara Tomdè Kara Togo Hô pital Secondaire de Bè Lomé Togo

Background: Ocular coloboma is the product of an error in the fetal fissure closure, normally occurring between the fifth and sixth weeks of gestation [1]. It may involve the cornea, iris, zonula, ciliary body, choroid, retina and optic nerve. The incidence of this syndrome is 0.7 per 10,000 live-births [1]. The aim of this observation is to present the first case of bilateral coloboma of the iris [1]. This case was associated with an ametropia causing a decrease in visual acuity. Case Presentation: This was a clinical observation concerning a young 12-year-old patient who consulted for blurring of vision which had progressed for approximately 2 years. The ophthalmologic examination revealed an ametropia with a bilateral notch of the pupillary rim suggesting a bilateral coloboma. There was no association with another coloboma such as chorioretinal coloboma which is quite common and is accompanied frequently by visual symptoms. Conclusion: A visual impairment of the child can indicate ametropia. However, other congenital anomalies can be discovered as was the case in this clinical observation.

关键词： Coloboma Iris Decreased Vision Kara Togo

Macular Thickness by Optical Coherence Tomography in Normal Togolese Melanoderma Subjects: A Case Study of 338 Eyes

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Open Journal of Ophthalmology 2022年第1期12卷 44-50页

作者： Kossi Dzidzinyo Akoete Djagnikpo Koffi Didier Ayena kokou Vonor Mawouli Ayodele Santos Kassoula Batomaguela Nonon-Saa kokou messan amedome Adam Nouhou-Diori Nidain Maneh Komi Balo Department of Ophthalmology Sylvanus Olympio University Hospital Lomé Togo Sight & Vision Ophthalmology Clinic Lomé Togo Department of Ophthalmology Secondary Hospital of Bè Lomé Togo Department of Ophthalmology Kara University Hospital Kara Togo Department of Ophthalmology Regional Hospital Center of Aneho Aneho Togo Department of Ophthalmology Campus University Hospital University of Lomé Lomé Togo

Objective: Maculopathies are more and more frequent. For the follow-up of its evolution and therapy, it seems important for us to determine the baseline in normal subjects by Optical Coherence Tomography (OCT). The goal here is to determine the acceptable range of macular thickness in normal black subjects in Lomé. Methodology: This is a retrospective study over a 6-month period. It did not include all patients with retinopathy of any cause, maculopathy, and glaucoma. The analyzed variables were the average macular thickness, the central macular thickness, and the total macular volume. Results: Out of the 433 macular OCT performed, 191 patients were selected;a total of 338 eyes. These included 96 men and 95 women. A sex ratio was 1.01. The median age was 44.1 years with extremes ranging from 10 to 70 years. The average macular thickness was 263.4 μm for the right eye and 263.7 μm for the left eye. The central macular thickness was 174.1 μm for the right eye and 173.3 μm for the left eye. The total macular volume was 7.4 in both eyes. Discussion: No significant statistical difference existed between the two sexes. The average macular thickness found in this study was within the range of normality observed in the literature, which is between 216 and 288 μm. Conclusion: The average macular thickness of the normal subject in Lomé was 263.4 μm.

关键词： Macular Thickness OCT Normal Subject

Optical Coherence Tomography’s Contribution to the Diagnosis of the Pathologies of the Vitreoretinal Interface in Lomé

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Open Journal of Ophthalmology 2018年第3期8卷 180-189页

作者： Kossi Dzidzinyo Hubert Yamdeu Koffi Didier Ayena kokou Vonor Nidain Maneh kokou messan amedome Kassoula Batomaguela Nonon Saa Koko Roger Kuaovi Yawa Nagbe Meba Banla Komi Balo Faculty of Health Sciences University of Lome Lomé Togo Eye Department of Teaching Hospital Sylvanus Olympio of Lomé Lomé Togo Eye Institute Afia of Lomé Lomé Togo

Purpose: To identify the pathologies of the vitreoretinal interface by Optical Coherence Tomography OCT of the retina in Lomé. Methodology: This is a retrospective analytical study, carried out in a specialized liberal center in Lomé. It was based on the analysis of OCT images of the retina, carried out with patients between October 2012 and October 2014. The variables collected were the socio-demographic characteristics, which were the various pathologies of the vitreoretinal interface. Results: 303 eyes of 164 patients were analyzed. The population was predominantly female (sex ratio = 0.95) aged 9 to 84 years with an average of 52.93 years. 121 eyes (39.9%) had posterior vitreous detachment with 66.1% in the 50 - 70 age group. 42 eyes (13.86%) presented vitreomacular traction with 66.6% in the 50 - 70 age group. 31 eyes (10.23%) presented an epi-retinal membrane with 61.2% in the 50 - 70 age group. 33 eyes (10.89%) had a full-thickness macular hole with 69.6% in the 50 - 70 age group. 4 eyes had a lamellar hole and 1 eye had a pseudo hole. Conclusion: OCT is an excellent tool for non-invasive exploration of the vitreoretinal interface. It gives precise information on the various pathologies of this interface. The need to evaluate the functional impact of these abnormalities, calls for other studies, especially prospective studies to assert their reality of those disease.

关键词： Posterior Vitreous Detachment Vitreous Macular Traction Retinal Membrane Macular Hole

Ten Years of Epidemiological and Diagnostic Aspects of Non-Traumatic Anterior Uveitis at Campus Teaching Hospital of Lome-Togo

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Open Journal of Ophthalmology 2023年第3期13卷 280-287页

作者： Nidain Maneh Adakou Aimée Victoire Abaglo Bénédicte Marèbe Diatewa Kanfiaguin Boundja Yawa Ebeva Nagbe Mawuli Ayodele Komi Santos kokou Vonor kokou messan amedome Didier Koffi Ayena Ophthalmology Department University of Lome Lome Togo Ophthalmology Department Teaching Hospital (CHU) Campus Lome Togo Ophthalmology Department University of Kara Kara Togo

Background: Uveitis is a serious disease which dangerous complications can jeopardize the visual prognosis. Anterior uveitis (AU) is the inflammation of the anterior uvea which is composed of the iris and the ciliary body. The objective of the study was to identify the epidemiological and etiological determinants of non-traumatic anterior uveitis at the Campus Teaching Hospital of Lomé. Materials and methods: Retrospective cross-sectional study of the records of patients diagnosed with anterior uveitis (AU) without a notion of trauma in the ophthalmology department of CHU Campus of Lomé from January 1, 2010 to December 31, 2019 (10 years). Results: 141 cases of uveitis, representing a prevalence of 0.18%. Female predominance, with a sex ratio of 0.76. Mean age was 34.74 ± 13.20 years. Decreased visual acuity was the primary complaint (34.40%), followed by ocular pain (28%). Non-traumatic anterior uveitis was unilateral in 87.2% of cases. Retro-corneal precipitates were present in all patients. 61.60% of patients had Tyndall in the anterior chamber. The etiology of non-traumatic AU was undetermined in 76.80% of cases. Toxoplasmosis, tuberculosis and syphilis were the main etiologies found. Conclusion: Non-traumatic anterior uveitis is relatively rare but serious, often affecting young subjects. It is a pathology that engages eye health professionals, not only because of the difficulties involved in diagnosing the etiology, but also because of its progression which sometimes leads to blindness.

关键词： Anterior Uveitis Non-Traumatic Epidemiology Etiology Lome

Determinants of the Ophthalmological Follow-Up of Sickle Cell Patients at the National Center of Research and Care for Sickle Cell Patients in Lome-Togo

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Open Journal of Ophthalmology 2023年第4期13卷 341-351页

作者： Nidain Maneh Yawa Edebah Nagbe Mawuli Ayodele Komi Santos Dadjo Amouzou Hezouwe Magnang Koffi Sylvain Kawilitetou kokou messan amedome Komi Patrice Balo Service d’Ophtalmologie du CHU-Campus Université de Lome Lomé Togo Service d’Ophtalmologie du CHU Sylvanus Olympio Université de Lome Lomé Togo Service d’Ophtalmologie CHP Université de Lomé FSS Aného Togo Département des sciences fondamentales CNRSD Lomé Togo Service d’ophtalmologie du CHU Université de Kara FSS Kara Togo

Objectives: To assess the factors influencing the ophthalmological follow-up of sickle cell patients in Togo. Materials and Methods: The national center of research and care for sickle cell patients (CNRSD) served as study setting. It was a descriptive and analytical study by interview over a three-month period from December 01, 2020 to March 02, 2021. Was included in the study, any patient with sickle cell disease genotype SS or SC, age ≥ 17 years, regularly followed at the CNRSD and having accepted the interview by a survey sheet. Excluded were patients with sickle cell trait genotype AS or AC or with a disability that prevented them from being interviewed. Results: Two hundred and fifty (250) patients with sickle cell disease were interviewed. The mean age was 29.1 years ± 11.12 years [17 years;67 years] and the sex ratio = 0.52. Nine patients over ten (9/10) attended at least secondary school. The jobless represented 25.60% of the total population followed respectively by students and laborers in 20.40% and 16% of cases. Twenty-four percent (24%) of patients were followed up in ophthalmology department. Statistically, there was no significant relationship between level of education (p = 0.4083), occupation (p = 0.6441) and knowledge of the ocular complications of sickle cell disease. Statistically, there was a significant relationship between knowledge of the ocular complications of sickle cell disease and compliance with ophthalmological follow-up (p = 0.0009). Conclusion: The knowledge of eye disorders related to sickle cell disease by patients with sickle cell disease improves their ophthalmological follow-up. Greater awareness on eye disorders related to sickle cell disease by medical staff towards patients with sickle cell disease would improve ophthalmological follow-up. .

关键词： Ophthalmological Follow-Up Sickle Cell Patient Ocular Complications Lome

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高精度激光三角测量表面缺陷检测

高精度激光三角测量表面缺陷检测

作者： amedome MIN-DIANEY Kodjo 长春理工大学

学位级别：硕士

测量技术在科学研究和工业生产中具有着重要意义,其中表面测量技术广泛用于形貌检测、三维重建、产品质量控制等领域。本论文对基于激光三角法的高精度表面缺陷检测技术进行了改进。首先,本文介绍了激光三角法,然后,设计了测量系统结构... 详细信息

测量技术在科学研究和工业生产中具有着重要意义,其中表面测量技术广泛用于形貌检测、三维重建、产品质量控制等领域。本论文对基于激光三角法的高精度表面缺陷检测技术进行了改进。首先,本文介绍了激光三角法,然后,设计了测量系统结构并对系统标定进行了论述。系统采用安装在直线导轨上的半导体激光器作为扫描物体表面的光源。在扫描过程中拍摄序列图像,物体表面上被激光扫描的所有点的三维坐标可以通过激光三角法计算得到。获得的点云图经过降噪和滤波处理,滤波后的各点坐标拟合成三维曲面,从拟合获得的曲面可以识别表面缺陷,并测量缺陷参数。最后,本论文对测量过程中的误差进行了分析。

关键词：表面测量激光三角测量缺陷检测最小二乘最佳拟合不确定性传播