Prevalence and causes of blindness within the rural population of the Chennai Glaucoma Study. Community-based mostly eye health survey in areas of Buan-Kun and Dobong-Ku in Korea. An ophthalmic survey of African sufferers presenting at rural eye clinics in South Africa. A population based survey of trachoma and blindness was conducted in a rural Nile Delta hamlet. Of residents 25 years old ninety% had substantial conjunctival scarring. Severe conjunctival scarring was commoner amongst girls (84%) than males (58%), and three-quarters of older women had trichiasis/entropion in contrast with 57% of older males.
- While vitamin C appears to play a protective