Table 2. Retinal thickness and volume measurements in the various refraction groups.
| Parameter | Region | Emmetropia | Mild myopia | Moderate myopia | P* | P values for Bonferroni post-hoc test | ||
|---|---|---|---|---|---|---|---|---|
| (n = 71) | (n = 65) | (n = 57) | emm vs mild myo | emm vs mod myo | mild myo vs mod myo | |||
| Retinal thickness (μm) | Foveola | 242.7 ± 24.4 | 238.8 ± 14.4 | 239.6 ± 19.4 | 0.480 | NA | NA | NA |
| Total macula | 282.9 ± 12.5 | 280.5 ± 13.0 | 277.1 ± 15.1 | 0.058 | NA | NA | NA | |
| Inner temporal | 311.9 ± 13.8 | 306.7 ± 13.3 | 303.0 ± 14.2 | 0.002 | 0.030 | <0.001 | 0.145 | |
| Inner nasal | 325.3 ± 13.2 | 320.3 ± 15.7 | 314.1 ± 14.5 | <0.001 | 0.045 | <0.001 | 0.189 | |
| Inner superior | 321.9 ± 20.2 | 317.8 ± 17.0 | 314.5 ± 14.9 | 0.065 | NA | NA | NA | |
| Inner Inferior | 317.0 ± 18.9 | 313.1 ± 15.0 | 310.0 ± 15.9 | 0.062 | NA | NA | NA | |
| Outer temporal | 269.1 ± 14.8 | 265.7 ± 10.7 | 263.3 ± 17.6 | 0.081 | NA | NA | NA | |
| Outer nasal | 302.1 ± 15.3 | 302.6 ± 15.1 | 296.7 ± 18.8 | 0.099 | NA | NA | NA | |
| Outer superior | 287.1 ± 17.5 | 284.7 ± 14.8 | 283.1 ± 17.3 | 0.395 | NA | NA | NA | |
| Outer Inferior | 273.0 ± 14.8 | 268.1 ± 14.2 | 267.3 ± 15.7 | 0.061 | NA | NA | NA | |
| Retinal volume (mm3) | 10.1 ± 0.4 | 10.0 ± 0.5 | 9.9 ± 0.6 | 0.062 | NA | NA | NA | |
Data are expressed as the mean ± standard deviation.
* One-way analysis of variance (ANOVA); emm: emmetropia group; mild myo: mild myopia group; mod myo: moderate myopia group; NA: not assessed (post-hoc analyses not merited due to non-significant result with the initial ANOVA test).