Table 4

Prevalence of presenting blindness in regions where all age groups within the population have been surveyed.

Year

Author

Location

Sample Size

Prevalence of Blindness


2006

Fotouhi et al [14]

Tehran, Iran

4565

0.39%

2006

Schemann et al [22]

Cape Verde Islands

3374

0.8%

2007

Shahriari et al [23]

Zahedan, Iran

5446

0.79%


Current

Schellini et al

Botucatu, Brazil

2485

2.2%


Presenting blindness is defined as presenting visual acuity < 3/60 in the better eye.

Schellini et al. BMC Ophthalmology 2009 9:8   doi:10.1186/1471-2415-9-8

Open Data