Population Based Assessment of Prevalence and Causes of Vision Impairment in the North-eastern State of Tripura, India – The Tripura Eye Survey

VI is common affecting nine out of every hundred people aged ≥40 years in the state of Tripura. Over 90% of which is due to avoidable causes such as cataract and uncorrected refractive errors. Provision of cataract surgery and spectacles may result in a substantial reduction in VI in Tripura.