Comparison of the best fit data obtained for both groups of subjects and presented in Table 2
| Centre | Surround | Ratio | R2 | |
|---|---|---|---|---|
| Control group | ||||
| Mean | 0.023 | 0.194 | 8.83 | 0.78 |
| SD | 0.003 | 0.024 | 1.97 | 0.17 |
| Diabetic group | ||||
| Mean | 0.018 | 0.175 | 11.18 | 0.56 |
| SD | 0.007 | 0.050 | 5.10 | 0.30 |
| p Value (t test) | 0.03 | 0.26 | 0.16 | 0.04 |