References
- Foster A, Johnson GJ. Blindness in thedeveloping world. Br J Ophthalmol 1993;77:198–9.
- National Blindness Survey. New Delhi: Indian Council for Medical Research, 1971.
- Madan Mohan. Survey of Blindness — India. Summary & Results. New Delhi: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute for Medical Sciences, 1989.
- Guideliness for District Blindness Control Societies. New Delhi: Ophthalmology Section, Directorate General of Health Services, Government of India, 1995.
- Statistical Unit. Central Ophthalmic Cell, Ministry of Health & Family Welfare, New Delhi.
- Venkataswamy G, Lepkowski JM, Thulasiraj RD, et al. Rapid epidem-iological assessment of cataract blindness. Int J Epidemiol 1989;18(suppl. 2):560–7.
- Brilliant LB, Lepkowski JM, Musch DC. Reliability of ophthalmic diagnosis in an epidemiologic survey. Am J Epidemiol 1983;118(2):265–79.
- Registrar General & Census Commissioner. Census of India. Ministry of Home Affairs, 1991.
- Bennet S, Woods T, Liyanage WM, Smith DL. A simplified general method for cluster-sample surveys of health in developing countries. Wld Hlth Statist Quart 1991;44:98–106.
- Registrar General of India. Sample Registration Bulletin (vol. 30, no. I, 1996).
- Limburg H, Kumar R, Indrayan A, Sundaram KR. Rapid assessment of prevalence of cataract blindness at district level. Int J Epidemiol 1997;26(5):1049–54.
- Brilliant GE, Lepkowski JM, Zurita B, Thulasiraj RD. Social determinants of cataract surgery utilization in South India. Arch Ophthalmol 1991;109:584–9.
- Danish Assistance to the National Programme for Control of Blindness. Rapid assessment of cataract blindness — Karnataka. New Delhi, 1997.
- Limburg H, Kumar R, Bachani D. Monitoring and evaluating cataract intervention in India. Br J Ophthalmol 1996;80(6):951–5.