Résumé :
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[BDSP. Notice produite par INIST-CNRS PLP9R0xm. Diffusion soumise à autorisation]. Aim : To confirm or refute the increased occurrence of open-angle glaucoma (OAG) in Mongo people compared with Kongo as previously discribed in Kinshasa inhabitants. Material and Methods : Three centres in rural areas in the Equateur region and three in the Bas-Congo region (mainly the home-land of the Mongo and the Kongo people respectively) were chosen and a total of 820 self-referred subjects (almost 1% in both populations) were recruited and examined. Ocular examination included visual acuity testing, inspection of the adnexa, slit-lamp examination, ophthalmoscopy and intraocular pressure measurements. The criterion for the diagnosis of OAG was a combination of an elevated intraocular pressure (>21 mmHg), a vertical cup/disc ratio larger than 0. 5 and the presence of an open anterior chamber angle. Results : Age adjusted glaucoma frequency was higher in Mongo patients, compared with Kongo patients (relative prevalence, 2.24 ; 95% confidence interval, 1.1-4.6) living in their own region of origin. Conclusion : the previously described ratio of OAG among Mongo was confirmed in people living in their region of origin. Together, these results are supportive for the hypothesis of a true biological difference between Mongo and Kongo people.
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