Tiruvengada Krishnan|Ravilla D. Ravindran|Gudlavalleti Venkata Satyanarayana Murthy|Praveen Vashist|Kathryn Fitzpatrick|R. D. Thulasiraj|Nitin Ashok John|G Maraini|Monica Camparini|Usha Chakravarthy|Astrid E. Fletcher
Prevalence of Early and Late Age-Related Macular Degeneration in India: The INDEYE Study
Aravind Eye Hospital|Aravind Eye Hospital|All India Institute of Medical Sciences|All India Institute of Medical Sciences|London School of Hygiene & Tropical Medicine|Aravind Eye Hospital|All India Institute of Medical Sciences|University of Parma|University of Parma|Queen's University Belfast|London School of Hygiene & Tropical Medicine
purpose estimate prevalence early late agerelated macular degeneration amd india methods 7518 people aged 60 years older identified randomly sampled villages north south india 5853 78 attended eye examination including fundus photography fundus images graded according wisconsin agerelated maculopathy grading system results fundus images ungradable 1587 people mainly cataract people 80 years age older less likely attend eye examination likely ungradable images ages 60 79 years percent prevalence 95 confidence interval ci late amd 12 0815 early amd grade 1 soft distinct drusen pigmentary irregularities 393 372415 grade 2 soft distinct drusen pigmentary irregularities soft indistinct reticular drusen 67 5876 grade 3 soft indistinct reticular drusen pigmentary irregularities 02 0104 ages 80 older respective percent prevalence late amd 25 0447 early amd grade 1 431357506 grade 2 81 43120 grade 3 05 015 conclusions prevalence early amd grades 1 2 similar observed western populations grade 3 appears lower prevalence late amd comparable western populations age group 60 79 years likely prevalence 80 older age group underestimated