Cleaned dataset of 77562 school children sampled in primary and secondary schools in Blantyre, South
Abstract Background Visual impairment impacts negatively on quality of life. Kenya has a
Background: Visual impairment is a global problem. The World Health Organization (WHO)
Purpose . To determine the prevalence, causes, and factors associated with presenting visual impairm
Aims: To determine the prevalence of refractive errors and causes of visual impairment
Background . An impairment of the visual system at or shortly after birth adversely affects educatio