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Prevalence of VI in various rapid assessment studies in Telangana
| Study/area | Year | Sample size | Moderate VI (%) | Blindness (%) | All VI (%) |
|---|---|---|---|---|---|
| RACSS, Adilabad2 | 2007 | 2160 | 13.6 | 8.0 | 21.6 |
| RAVI (Warangal)10 | 2011–2012 | 1357 | 12.5 | 9.7 | 22.2 |
| RAVI (Khammam)10 | 2011–2012 | 1191 | 17.1 | 9.2 | 26.3 |
| Present study—Adilabad | 2014 | 1550 | 16.6 | 5.3 | 21.9 |
| Present study—Mahbubnagar | 2014 | 1660 | 18.6 | 6.5 | 25.1 |
RACSS, Rapid Assessment of Cataract Surgical Services; RAVI, Rapid Assessment of Visual Impairment; VI, visual impairment.
