Fatima Kyari|Gabriel Entekume|Mansur Muhammad Rabiu|Paul G. Spry|Richard Wormald|Winifred Nolan|Gudlavalleti Venkata Satyanarayana Murthy|Clare Gilbert
A Population-based survey of the prevalence and types of glaucoma in Nigeria: results from the Nigeria National Blindness and Visual Impairment Survey
University of Abuja|London School of Hygiene & Tropical Medicine|Saudi Center for Disease Prevention and Control|University Hospitals Bristol NHS Foundation Trust|Bristol Eye Hospital|London School of Hygiene & Tropical Medicine|University College London|Moorfields Eye Hospital|University College London|Moorfields Eye Hospital|Public Health Foundation of India|Institute of Public Health|London School of Hygiene & Tropical Medicine|London School of Hygiene & Tropical Medicine
glaucoma leading cause irreversible blindness worldwide tends lower reporting glaucoma africa compared blinding conditions global burden data research findings glaucoma nigeria significantly increase understanding glaucoma nigeria people west african diaspora similar population groups determined prevalence types glaucoma nigeria nigeria national blindness visual impairment crosssectional survey adults aged 40 yearsmultistage stratified cluster random sampling probabilityproportionaltosize procedures used select nationally representative sample 15027 persons aged 40 years participants logmar visual acuity measurement fdt visual function testing autorefraction ascan biometry optic disc assessment participants visual acuity worse 612 suspicious optic discs detailed examination including goldmann applanation tonometry gonioscopy fundus photography disc images graded moorfields eye hospital reading centre glaucoma defined using international society geographical epidemiological ophthalmology criteria classified primary openangle primary angleclosure secondary glaucoma diagnosis glaucoma based isgeo classification type glaucoma determined gonioscopya total 13591 participants 305 clusters examined response rate 904 optic disc grading available 25289 93 eyes 13081 96 participants 682 participants glaucoma prevalence 502 95 ci 460547 among definite primary glaucoma gonioscopy n 243 openangle glaucoma common 86 angleclosure glaucoma 14 8 glaucoma secondary commonest causes couching 38 trauma 21 uveitis 19 56 38682 participants glaucoma knew condition one every 5 persons glaucoma 13620 blind ie visual acuity worse 360nigeria high prevalence glaucoma largely openangle glaucoma high proportion affected blind secondary glaucoma mostly consequence procedures cataract public health control strategies high quality glaucoma care service required reduce morbidity blindness glaucoma