| Presenting visual acuity | ||||
| <6/18 | <6/60 | <3/60 | ||
| Province | Punjab | 748 (8.5) | 250 (2.8) | 177 (2.0) |
| p<0.001* | Sindh | 343 (9.4) | 113 (3.1) | 50 (1.4) |
| NWFP | 195 (6.3) | 70 (2.2) | 46 (1.5) | |
| Balochistan | 52 (5.5) | 22 (2.3) | 16 (1.7) | |
| Dwelling | Rural | 589 (5.3) | 337 (3.0) | 214 (1.9) |
| p = 0.004* | Urban | 968 (8.7) | 118 (2.2) | 75 (1.4) |
| Literacy | Illiterate | 1225 (10.5) | 425 (3.7) | 273 (2.3) |
| p<0.001* | Literate | 113 (2.3) | 30 (0.6) | 16 (0.3) |
| Total | 1338 (8.1) | 455 (2.8) | 289 (1.8) | |
NWFP, North West Frontier Province. *Chi-squared test (blindness).