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. Author manuscript; available in PMC: 2014 Mar 21.
Published in final edited form as: Ophthalmic Epidemiol. 2013;20(1):33–39. doi: 10.3109/09286586.2012.741279

Figure 2.

Figure 2

Data availability plot for studies conducted between 1980 and 2012, identified by the GBD Study systematic review that reported distance visual acuity sequelae, organised by region, with survey year and population-representativeness highlighted. The population sampled by each study is represented as either national in scope, that of a first administrative unit or greater (includes state or regional) or a local/district level.