GBD sub-region | Country | Year of publica-tion of study [Ref] | Number of participants in survey | Partici-pation rate of those sampled (%) | Age group (years) | Blindness* rate (%) | Percent of blindness due to un-corrected refractive error | Less severe visual impairment†rate (%) | Percent of less severe visual impairment due to uncorrected refractive error | Types of refractive error causing visual impairment‡ |
---|---|---|---|---|---|---|---|---|---|---|
AFRO E | Ethiopia | 1997 [10] | 7423 | 90 | All ages | 0.85 | 8.0 | 1.68 | 28.8 | Unspecified refractive error, aphakia |
EMRO B | Lebanon | 1997 [11] | 10148 | 90 | All ages | 0.60 | 12.6 | 3.90 | 50.0 | Myopia, hyperopia, aphakia |
EURO B1 | Turkey | 1996 [12] | 7497 | 87 | All ages | 0.40 | 12.0 | 1.50 | 29.0 | Unspecified refractive error, aphakia |
SEARO B | Malaysia | 2002 [13] | 18027 | 69 | All ages | 0.29 | 10.4 | 2.44 | 56.1 | Unspecified refractive error, aphakia |
SEARO D | India | 2001 [14] 2002 [15] | 10293 | 87 | All ages | 1.34 | 14.9 | 8.59 | 45.0 | Myopia, hyperopia, aphakia, pseudo-phakia, refractive error related amblyopia |
SEARO D | Pakistan§ | 1998 [16] | 1156 | 90 | All ages | 2.08 | 16.7 | 6.92 | 55.0 | Unspecified refractive error |
SEARO D | Pakistan | 2005 [17] | 1106 | 94 | 40 or more | 1.90 | 14.3 | 8.05 | 29.2 | Unspecified refractive error, aphakia |
WPRO A | Australia | 2001 [18] | 4744 | 86 | 40 or more | 0.16 | 0.0 | 1.56 | 37.6 | Myopia, hyperopia |
WPRO B1 | China | 1999 [19] | 5342 | 83 | 50 or more | 2.67 | 12.4 | NA | NA | Unspecified refractive error |