Glaucoma is fast emerging as a major cause of blindness in India. In order to estimate the prevalence of primary open angle glaucoma (POAG) and primary angle closure glaucoma (PACG) in an urban South Indian population. we examined 972 individuals aged 30-60 years. chosen using a cluster sampling technique from 12 census blocks of Vellore town. https://www.roneverhart.com/Slate-Digital-VCC-Virtual-Console-Collection-p32717/