Means (SD) of flow velocities (cm/s) assessed by colour Doppler imaging in patients undergoing cataract surgery with subconjunctival anaesthesia
| Before surgery (baseline) | After subconjunctival anaesthesia | After surgery | |
|---|---|---|---|
| OA, ophthalmic artery; PSV, peak systolic velocity; EDV, end diastolic velocity; RI, resistive index; CRA, central retinal artery. | |||
| *p<0.001 to baseline; **p<0.001 to after anaesthesia. | |||
| OA PSV (cm/s) | 28.94 (6.78) | 28.17 (6.91)* | 28.14 (7.09)** |
| OA EDV (cm/s) | 5.98 (2.16) | 5.90 (2.39)* | 6.38 (2.55)** |
| OA RI | 0.79 (0.06) | 0.80 (0.05) | 0.78 (0.06) |
| CRA PSV (cm/s) | 9.23 (1.63) | 9.2 (1.53)* | 9.34 (1.46)** |
| CRA EDV (cm/s) | 2.81 (0.71) | 2.56 (0.28)* | 2.74 (0.51)** |
| CRA RI | 0.70 (0.06) | 0.72 (0.04) | 0.71 (0.05) |
| CRV PSV (cm/s) | 4.58 (0.78) | 4.56 (0.88)* | 4.65 (0.95)** |
| CRV EDV (cm/s) | 2.45 (0.51) | 2.52 (0.53)* | 2.53 (0.51)** |