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Prevalence of refractive errors among school children in different parts of the world
| Country | Year | Age group | Sample size | Prevalence of refractive errors |
|---|---|---|---|---|
| Iran | 2007 | 6-17 | 5544 | 3.8% |
| Malaysia | 2008 | 6-12 | 840 | 7.7% |
| Nepal | 2011 | 5-16 | 2236 | 8.6% |
| Uganda | 2002 | 6-9 | 623 | 11.6% |
| Bangkok | 2010 | 6-12 | 1100 | 12.7% |
| India | 2007 | 6-12 | 2317 | 25.1% |
| Qatar | 2010 | 6-13 | 670 | 19.7% |
| Saudi Arabia | 2010 | 12-13 | 1536 | 9.8% |
| Saudi Arabia Current | 2011 | 6-14 | 2002 | 13.7% |
