Global estimates of visual impairment: 2010.

摘要: Aim From the most recent data magnitude of visual impairment and its causes in 2010 have been estimated, globally by WHO region. The definitions are current presenting vision International Classification Diseases version 10. Methods A systematic review was conducted published unpublished surveys from 2000 to present. For countries without on impairment, estimates were based newly developed imputation methods that took into account country economic status as proxy. Results Surveys 39 satisfied inclusion criteria for this study. Globally, number people all ages visually impaired is estimated be 285 million, whom million blind, with uncertainties 10–20%. People 50 years older represent 65% 82% respectively. major uncorrected refractive errors (43%) followed cataract (33%); first cause blindness (51%). Conclusion This study indicates a health issue unequally distributed among regions; preventable high 80% total global burden.