Distribution of (1) the retinal thickness (RT) measured with OCT1 and with Stratus OCT, (2) the difference between the RT values measured with Stratus OCT and OCT1, and (3) the RT ratio (Stratus OCT – OCT1)/OCT1 based on the 505 non-artefactual RT measurements for 42 eyes with diabetic macular oedema and 17 eyes with healthy maculae
| OCT 1 (μm) | Stratus OCT(μm) | Stratus OCT − OCT 1 (μm) | (Stratus OCT − OCT 1)/OCT 1 | |
|---|---|---|---|---|
| Number of values | 505 | 505 | 505 | 505 |
| Mean | 308.8 | 333.8 | 25.0 | 0.08 |
| SD | 116.8 | 126.7 | 26.2 | 0.078 |
| Error of mean | 5.2 | 5.6 | 1.2 | 0.003 |
| Minima | 124 | 126 | −68 | −0.192 |
| Maxima | 761 | 824 | +216 | +0.557 |