Interobserver/intervisit rim area repeatability coefficients (mm2) obtained with different image qualities and using different types of HRT and the 320 µm reference plane
| Image quality | HRT Classic | HRT Explorer | HRT-II Explorer | |||
|---|---|---|---|---|---|---|
| No of subjects | RC | No of subjects | RC | No of subjects | RC | |
| MPHSD, mean pixel height standard deviation. | ||||||
| Good quality image (MPHSD <21) | 28 | 0.05 | 28 | 0.08 | 38 | 0.07 |
| Medium quality image (MPHSD 21–35) | 27 | 0.16 | 27 | 0.13 | 23 | 0.09 |
| Poor quality image (MPHSD >35) | 19 | 0.20 | 19 | 0.19 | 13 | 0.27 |