Table 6.
Comparing the MD value between the long AL eyes and short AL eyes in the same individual by paired Student’s t test
| Mean | SD | Paired difference | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | t value | p value | 95%CI | |||
| All (n = 942) | |||||||
| AL-Longer | 22.53 | 1.29 | |||||
| AL-Shorter | 22.20 | 1.01 | 0.33 | 0.72 | 13.849 | < 0.001 | 0.28 to 0.37 |
| MD (AL-Longer) | 14.91 | 9.05 | |||||
| MD (AL-Shorter) | 12.02 | 8.36 | 2.89 | 12.07 | 7.248 | < 0.001 | 2.11 to 3.67 |
| Male (n = 314) | |||||||
| AL-Longer | 22.80 | 1.18 | |||||
| AL-Shorter | 22.53 | 1.12 | 0.28 | 0.37 | 13.160 | < 0.001 | 0.24 to 0.32 |
| MD (AL-Longer) | 14.79 | 9.44 | |||||
| MD (AL-Shorter) | 14.42 | 9.31 | 0.36 | 13.98 | 0.457 | 0.648 | −1.93 to 1.21 |
| Female (n = 628) | |||||||
| AL-Longer | 22.40 | 1.31 | |||||
| AL-Shorter | 22.04 | 0.91 | 0.35 | 0.84 | 10.371 | < 0.001 | 0.29 to 0.42 |
| MD (AL-Longer) | 14.43 | 8,74 | |||||
| MD (AL-Shorter) | 11.34 | 7.96 | 3.09 | 11.14 | 6.846 | < 0.001 | 2.20 to 3.97 |
In the female subgroup, the eyes with a long AL were found with a higher MD value than in the ones with a short AL. However, similar results were not found in the male subgroup
AL axial length, MD mean deviation values for the visual field, SD standard deviation, n the number of patients