TABLE 4.
MEAN DIFFERENCE IN RETINAL NERVE FIBER LAYER THICKNESS (RIGHT MINUS LEFT) MEASURED WITH THE FAST SCAN ALGORITHM OF STRATUS OCT*
| VARIABLE | MEAN DIFFERENCE (μm) | STANDARD DEVIATION (μm) | 95% CONFIDENCE INTERVAL (μm) | P VALUE |
|---|---|---|---|---|
| Mean | 1.2 | 5.2 | 0.1 to 2.1 | .026 |
| Temporal | 2.6 | 9.1 | 0.8 to 4.3 | .004 |
| Superior | –2.6 | 13.3 | –5.1 to –0.6 | .045 |
| Nasal | 3.8 | 12.5 | 1.4 to 6.2 | .002 |
| Inferior | 0.8 | 12.7 | –1.6 to 3.3 | .508 |
| 9:00/3:00 | 2.2 | 8.0 | 0.6 to 3.8 | .006 |
| 10:00/2:00 | 6.0 | 14.3 | 3.2 to 8.8 | <.001 |
| 11:00/1:00 | 6.2 | 18.6 | 2.6 to 9.8 | .001 |
| 12:00 | –5.0 | 19.2 | –8.7 to –1.3 | .009 |
| 1:00/11:00 | –9.1 | 16.6 | –12.3 to –5.9 | <.001 |
| 2:00/10:00 | 2.0 | 18.7 | –1.6 to 5.7 | .276 |
| 3:00/9:00 | 2.9 | 15.2 | –0.1 to 5.8 | .053 |
| 4:00/8:00 | 6.6 | 14.1 | 3.8 to 9.3 | <.001 |
| 5:00/7:00 | 1.9 | 17.9 | –1.5 to 5.4 | .279 |
| 6:00 | 2.7 | 22.4 | –1.7 to 7.0 | .219 |
| 7:00/5:00 | –2.1 | 17.7 | –5.6 to 1.3 | .226 |
| 8:00/4:00 | –0.5 | 12.4 | –2.9 to 1.9 | .680 |
*
Clock-hour values given for right/left eyes