Children | | | | | | |
Chile, La Florida44 | 1998 | Cluster random sample | Hispanic | 5–15 | ≤20/40 | 55 |
Colombia, Medellin45 | 1993 | 20% random sample from 88 000 children screened all public schools | Hispanic | 5–14 | Not specified | 50 |
USA, California46 | 1979–88 | First graders in a school district | (>50% Hispanic) | 6–7 | ≤20/40 | 65 |
| | | | | | |
Adults | | | | | | |
Chile47 | 1990 | Community screening for blindness | Hispanic | ≥;60 | ≤20/200 | 48 |
Brazil,22 Sao Paulo | 1986–7 | Stratified random sample | Hispanic | ≥;65 | ≤20/25 | 49 |
Brazil,23 Capinas | 1986–7 | Community based | Hispanic | ≥;50 | ≤20/200 | 34 |
Brazil,24 Porto Alegre | 1992–4 | Community screening for blindness | Hispanic | All ages | ≤20/200 | 44 |
Peru,23 Chimbote | 1986–7 | Community based | Hispanic | ≥;40 | ≤20/200 | 15 |
USA Baltimore, MD29 | 1985–8 | Stratified random sample | White | ≥;40 | ≤20/200 | 21 |
| | | Black | ≥;40 | ≤20/200 | 18 |
USA, Salisbury, MD34 | 1994–5 | Community based random sample | White | 65–84 | <20/40 | 34 |
| | | Black | 65–84 | <20/40 | 23 |
USA, Tucson and Nogales, AZ35 | 1997–9 | Community based random sample | Hispanic | ≥;40 | <20/40 | 73 |