Changing trends of blindness, visual impairment and cataract surgery in Bhutan: 2009-2018.
PurposeTo obtain new rapid assessment of avoidable blindness (RAAB) data on the prevalence, causes and trends of blindness, visual impairment and cataract surgery; and compare the new 2018 data with the older RAAB 2009 data.MethodologyThe second nationwide RAAB used android based mRAAB technique and technology for data collection.Using the compact