Ocular pathologies in study participants (n = 1,183) from onchocerciasis endemic villages situated in the river basins of Kéran, Mô and Ôti in northern and central Togo.

The village populations have been treated annually via CDTI. The ocular pathologies, their grades of evolution and extent were classified as described previously [12] and are indicated for the right and left eye (RLE), the left eye (LE) and the right eye (RE). Chi-Square tests were applied to compare ocular pathologies of the right eye (RE) between female and male patients. One-sided Fisher exact test was used to evaluate differences in the prevalence of ocular pathologies in patients from the Ôti, Kéran and Mô river basins, and significant differences are indicated by p<0.05. Spearman’s rank correlation analyses of ocular pathologies of the right eye (RE) and age were conducted; the correlation coefficient ρ and the significant associations (p<0.05) are shown.