Beginning | End | Difference | Percentage | |
Superior quadrant | 15 | 28 | 13 | 14.44% |
Inferior quadrant | 23 | 33 | 10 | 11.12% |
Nasal quadrant | 14 | 26 | 12 | 13.33% |
Temporal quadrant | 38 | 45 | 7 | 7.77% |
Total | 90 | 132 | 42 | 46.66% |