Zahid Jadoon|S P Shah|Rupert Bourne|Brendan Dineen|Muhammad Asghar Khan|Clare Gilbert|Allen Foster|Mohammad Daud Khan
Cataract prevalence, cataract surgical coverage and barriers to uptake of cataract surgical services in Pakistan: the Pakistan National Blindness and Visual Impairment Survey
London School of Hygiene & Tropical Medicine
aim estimate prevalence visual impairment blindness caused cataract prevalence aphakiapseudophakia cataract surgical coverage csc identify barriers uptake cataract services among adults aged 30 years pakistanmethods probability proportionaltosize procedures used select nationally representative sample adultseach subject underwent interview visual acuity measurement autorefraction biometry ophthalmic examinationthose saw 612 either eye underwent intensive examination procedure including corrected visual acuity slit lamp dilated fundus examinationcsc calculated different levels visual loss person eyeindividuals 660 better eye result cataract interviewed regarding barriersresults 16 507 adults examined 955 response ratethe crude prevalence blindness presenting 360 better eye caused bilateral cataract 175 95 ci 155 1961317 participants 633 men 684 women undergone cataract surgery one eyes giving crude prevalence 80 95 ci 76 84the csc persons 360 660 618 771 693 437 respectivelythe csc eyes 360 660 618 614 522 407 respectivelycost surgery 761 main barrier surgeryconclusion approximately 570 000 adults estimated blind 360 result cataract pakistan 3 560 000 eyes visual acuity 660 cataractoverall national surgical coverage good underserved populations identified