Biomedical subjects

C Ebana Mvogo

Publications and source records attributed to C Ebana Mvogo.

7 recordsLinked to original sources

PubMed2005

[Amblyopia and strabismus in our environment].

PURPOSE: This study aimed to identify the characteristics of amblyopia in a group of strabismic patients in our environment in order to improve management. METHODS: A prospective study was carried out in the General Hospital, Douala, from July 1991 to July 2003. All strabismic patients had a complete ophthalmological examination including an oculomotor evaluation and skiascopy after cycloplegia. RESULTS: 330 patients were examined. The mean age at initial consultation was 13.97 years +/- 12.21. The prevalence of amblyopia was 80.46% in esotropia and 59.40% in exotropia. The precocity of strabismus, eccentric fixation, torticollis, presence of a vertical element and nystagmus were aggravating factors for amblyopia. CONCLUSION: In order to carry out early and coherent management of strabismus, it is important to train and inform all those who are involved in the care process.

Adolescent↗

PubMed2005

[Post-traumatic glaucoma with irido-corneal angle injuries in Cameroon].

AIM: To study the particularities of late post-traumatic glaucoma with irido-corneal angle injuries in black Cameroonians. MATERIAL AND METHODS: Retrospective analysis of 1343 files of glaucomatous patients was carried out from January 1991 to December 2001 at the Douala General Hospital in Cameroon in Central Africa. Fifty seven of them had post-traumatic glaucoma. Of these 28 were secondary to irido-corneal angle injuries. RESULTS: The prevalence of post-traumatic glaucoma related to irido-corneal angle injuries in our population was 2.1%. The mean patients age was 45.9 +/- 18.3 years (range, 17 to 67 years). The time from injury to diagnosis ranged from 1 year 4 months to 7 years (median: 3.7 years). The follow-up period ranged from 3 months to 5 years 6 months, with a mean of 1.7 +/- 1.9 years. The prevalence of monocular blindness was 61.9% and 81% at the first and last examination respectively. The mean intraocular pressure was 36.9 +/- 13.8 mmHg (range: 22 and 66 mmHg) at the first examination and 24.3 +/- 13 mmHg (range: 12 and 29 mmHg) at the last examination. The mean recorded cup/disc ratio was 0.8 +/- 0.2. It was equal to 1.0 in 61.9% of cases. Irido-corneal angle recession was the most common lesion (61.9%) followed by iridodialysis (38.1%) and cyclodialysis (14.3%). Normalization of the intraocular pressure was achieved with medical treatment in 23.8% and with trabelectomy in 12.3% of the cases. Neovascular glaucoma was found in 4.8% of the cases. CONCLUSION: The treatment of secondary post-traumatic open angle glaucoma is disappointing. The patients are young, the disease is advanced, and the compliance and follow-up are poor. The prevention of post-traumatic glaucoma is based on the control of ocular trauma and the periodic follow-up of patients with and history of non perforating injury of the eye.

Adolescent↗

PubMed1996

[Intraocular pressure in a young Cameroonian population].

Glaucoma is one of the major causes of blindness throughout the world; mostly because patients come to consultation late. We performed a prospective study of the intraocular pressure, fundus and perimetry in 307 young Cameroonians (20 to 39 years old). Glaucoma was found in 5.8% of cases. This study shows that the disease appears early in black people and must be detected in patients under 40 years old.

Adult↗

PubMed1996

[Strabismus in Cameroon].

PURPOSE: We undertook a study on strabismus in order to determine the characteristics of this disease in Cameroon. MATERIAL AND METHODS: A prospective study was carried out in the ophthalmological unit of the Douala General Hospital from November 1991 to October 1995. All patients were examined and followed regularly by the same team. RESULTS: We found 137 strabismus, which represent 1.22% of all patients with 51 esotropias (37.2%) and 86 exotropias (62.8%). The mean age was 13.61 years at the first consultation. 82.4% of convergent strabismus appeared before the age of one year against 67.4% of divergent strabismus. Moreover, amblyopia was found in 68.6% and 59.3% of cases respectively. CONCLUSION: As compared to European series, this study shows notably the great frequency of divergent squint in black africans and the fact that spontaneous evolution of the latter can lead to amblyopia in a large number of cases.

Adolescent↗

PubMed1995

Pterygium: epidemiological, clinical and therapeutical aspects at the Douala General Hospital.

Authors report the results of a retrospective study of epidemiological, clinical and therapeutical aspects of pterygium carried at the ophthalmological service of the Douala General Hospital. During the period of the study, 167 patients with pterygium were registered, which means a prevalence of 1.10%. The mean age of the patients was 41.76 years with standard deviation of 10.89. The noticed that men were a little bit predominant as compared to women with respectively 54.8% and 45.2% of cases. The pterygium were in the nasal side in 93.66% of cases and bilateral forms represented 31.73% of cases. 67 eyes were operated by excision technic more often associated to conjunctival translation. The relapse rate at 6 months was 7.44%. Authors recommend: 1 degree)-not to operate small and non-evaluative pterygium 2 degrees)-to use a magnifying system and if possible the operatory microscope 3 degrees)-to institute systematically an early, intensive, prolonged but degressive corticotherapy after surgery. 4 degrees)-to prescribe tinted or photochromic glasses to patients.

Adolescent↗

PubMedDate not supplied

[Les amétropies statiques du noir camerounais].

PURPOSE: We undertook this study with the aim to determine static ametropias of black Cameroonians as well as their clinical manifestations. It is a prospective study carried out in the Department of Ophthalmology of Douala General Hospital from January 1996 to December 1998. PATIENTS AND METHOD: During this period, all patients who fulfilled our criteria had a skiascopy done under cycloplegia. We thus examined 2,484 patients (4,968 eyes). 66.2% of them were female and 33.8% were male. RESULTS: In our series, hyperopia was found in 51% of the cases, hyperopic astigmatism in 27.5% of the cases, myopic astigmatism in 9.3% of cases, mixed astigmatism in 7.7% of cases and myopia in 4.5% of cases. Distribution of ametropias is influenced by age, not by sex or laterality. DISCUSSION AND CONCLUSION: Functional signs just have an indicative value; only objective refraction under cycloplegia can determine exactly the ametropia.

Adolescent↗

PubMedDate not supplied

[Sensory heterotropias: epidemiological aspects at Douala General Hospital (Cameroon)].

The aim of this retrospective study was to determine the epidemiological characteristics of the sensory heterotropia cases seen in the Opthamology Department of Douala General Hospital between November 1991 and November 1999. Sensory heterotropia accounted for 22.5% of the cases of strabismus reported. Onset was before the age of one year in 80.4% of cases and after the age of one year in 19.6% of cases. All cases of esotropia were apparent before the age of one year. Sensory heterotropia was associated with amblyopia in 89.3% of cases, with eccentric fixation in 78.6% of cases and with nystagmus in 53.6% of cases. Etiology was diverse, the most frequent causes being: albinism (19.6%), chorioretinal scars (16.1%), unilateral cataracts (16.1%), atrophy of the optic nerve (16.1%) and ametropia (8.9%). We recommend preventive measures for some etiologies.

Adolescent↗