| Variables | Frequency (N = 270) | Percentage (%) |
| Age |
|
|
| 18 - 35 yrs | 91 | 34 |
| >35 - 50 yrs | 100 | 37 |
| >50 yrs | 79 | 29 |
| Gender |
|
|
| Male | 106 | 39 |
| Female | 164 | 61 |
| Ethnic group |
|
|
| Bantu | 219 | 81 |
| Nilotics | 33 | 12 |
| Nilohamites | 14 | 5 |
| Others | 4 | 2 |
| Diabetics |
|
|
| Yes (RBS ≥ 200) | 25 | 9 |
| No (RBS < 200) | 245 | 91 |
| Glaucoma |
|
|
| Yes | 12 | 4 |
| No | 159 | 59 |
| Not sure | 99 | 37 |
| Hypertensive (mmHg) |
|
|
| Yes (140/90) | 53 | 20 |
| No (120/80) | 217 | 80 |
| History of eye trauma |
|
|
| Yes | 23 | 9 |
| No | 247 | 91 |
| History of surgical operation on eye |
|
|
| Yes | 32 | 12 |
| No | 238 | 88 |