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Effective refractive error coverage in adults aged 50 years and older: estimates from population-based surveys in 61 countries

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General Info
Geography 
Nangarhār
Argentina (ARG)
Khulna
Bhutan (BTN)
Bolivia (BOL)
Brazil (BRA)
Burundi (BDI)
Cambodia (KHM)
Cameroon (CMR)
Chile (CHL)
China (CHN)
Cuba (CUB)
Ecuador (ECU)
Egypt (EGY)
Ethiopia (ETH)
Oromīya
Guatemala (GTM)
Honduras (HND)
Hungary (HUN)
India (IND)
Maharashtra, Uttar Pradesh
Indonesia (IDN)
Jordan (JOR)
Irbid
Kenya (KEN)
Malawi (MWI)
Malaysia (MYS)
Maldives (MDV)
Mali (MLI)
Koulikoro
Mexico (MEX)
Chiapas, Nuevo León, Querétaro
Mongolia (MNG)
Nampula, Sofala
Nepal (NPL)
Nārāyanī
Nigeria (NGA)
Sokoto
Pakistan (PAK)
Palestine (PSE)
Panama (PAN)
Peru (PER)
Qatar (QAT)
Rwanda (RWA)
Ar Riyāḑ
Senegal (SEN)
Fatick, Kaolack
Uganda (UGA)
Morogoro, Singida
California
Uruguay (URY)
Viet Nam (VNM)
Yemen (YEM)
Zambia (ZMB)
Coverage type 
Country
Time period covered 
01/2000 - 12/2021