Les amétropies statiques du noir camerounais

Abstract

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.

Ametropias in Kinkala: Epidemiological and Clinical Aspects

“…Taking into account the spherical equivalent of different ametropia, 79.57% of our patients had hyperopia between 0.25 and 2.5 diopters (Table 3), which is consistent with Ebana [12] results in Cameroon, where hyperopia and astigmatism hyperopia accounted for 78.5% of patients.…”

“…These results are close to those of Ebana [12] in Cameroon with 4.6% myopia and 51% hyperopia. We had a little more patients with astigmatism because of the use of the auto-refractometer which is a little more sensitive to the detection of astigmatism [7].…”

“…Hyperopic astigmatism accounted for 86.71% of astigmatisms versus 9.83% of myopic astigmatisms. These results are close to those of Ebana [12] in Cameroon with hypermetropic astigmatism at nearly 27% of all ametropia compared with nearly 9% of myopic astigmatism. Gargouri [13] in Tunisia had noted 59%…”

Study of Vision Problems in Schools in Libreville and Owendo, Gabon

“…We found a higher frequency of visual acuity problems among girls than boys. Other authors have reported a higher frequency of hypermetropia among girls [18] [19] or myopia among boys [20]. No physio-pathological explanation could be identified.…”

“…Visual complaints are frequent among children with visual acuity impairments. Tearing, ocular itchiness and headaches were described by other authors [10] [11] [21]. Vision problems have a direct impact on academic outcomes.…”