Research Article

Prevalence, Causes, and Risk Factors of Presenting Visual Impairment and Presenting Blindness in Adults Presenting to an Examination Center in Suzhou, China

Figure 1

The distribution of monocular presenting blindness causes using the WTO and US standards. (a) Monocular presenting blindness causes using the WTO standard; (b) monocular presenting blindness causes using the US standard.
(a)
(b)