Distribution of refractive errors
| Type of refractive error | In right eye | In left eye | ||
|---|---|---|---|---|
| Frequency | (%) | Frequency | (%) | |
| Myopia | 65 | 10.7 | 60 | 9.9 |
| Myopic astigmatism | 185 | 30.4 | 177 | 29.3 |
| Hyperopia | 67 | 11.1 | 56 | 9.3 |
| Hyperopic astigmatism | 179 | 29.4 | 181 | 29.9 |
| Mixed astigmatism | 112 | 18.4 | 131 | 21.6 |
| Total | 608 | 100.0 | 605 | 100.0 |