Table 2.
Comparison of intraoperative parameters and corneal damage in the soft and hard nucleus subgroups
| Total n = 104 |
Soft lens (grade II nucleus) n = 39 |
Hard lens (grade III + IV nucleus) n = 65 |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Balanced(n = 47) | Kelman(n = 57) | P value | Balanced(n = 15) | Kelman(n = 24) | P value | Balanced(n = 32) | Kelman(n = 33) | P value | |
| Total case time | 561.1 ± 276.5 | 525.1 ± 389.9 | 0.596 | 529.8 ± 282.0 | 491.2 ± 475.4 | 0.777 | 576.1 ± 277.2 | 549.8 ± 319.4 | 0.724 |
| total Estimated fluid Aspirated | 44.0 ± 20.9 | 48.5 ± 32.7 | 0.418 | 33.9 ± 8.4 | 31.5 ± 8.5 | 0.394 | 48.8 ± 23.3 | 60.8 ± 37.9 | 0.127 |
| CDE | 6.10 ± 7.32 | 9.57 ± 12.49 | 0.081 | 1.73 ± 1.84 | 2.35 ± 2.64 | 0.432 | 8.15 ± 8.02 | 14.82 ± 14.16 | 0.023 |
| ATA (%) | 27.59 ± 12.26 | 53.75 ± 13.00 | < 0.001 | 17.79 ± 8.60 | 45.70 ± 14.11 | < 0.001 | 32.18 ± 11.03 | 59.59 ± 8.30 | < 0.001 |
| ATA-FP3 | 27.20 ± 12.18 | 52.80 ± 12.69 | < 0.001 | 17.72 ± 8.54 | 45.40 ± 14.05 | < 0.001 | 32.03 ± 10.94 | 58.19 ± 8.31 | < 0.001 |
| EATA-FP3 | 10.88 ± 4.87 | 21.12 ± 5.07 | < 0.001 | 7.09 ± 3.41 | 18.16 ± 5.62 | < 0.001 | 12.81 ± 4.38 | 23.27 ± 3.32 | < 0.001 |
| ALP (%) | 7.61 ± 11.87 | 38.13 ± 12.54 | < 0.001 | 3.95 ± 7.34 | 32.27 ± 13.78 | < 0.001 | 9.32 ± 13.23 | 42.39 ± 9.71 | < 0.001 |
| ALP-FP3 | 0.08 ± 0.11 | 0.56 ± 0.50 | < 0.001 | 0.04 ± 0.06 | 0.24 ± 0.17 | < 0.001 | 0.09 ± 0.13 | 0.79 ± 0.53 | < 0.001 |
| EAUP-FP3 | 1096 ± 4.92 | 21.68 ± 5.25 | < 0.001 | 7.13 ± 3.44 | 18.40 ± 5.66 | < 0.001 | 12.90 ± 4.43 | 24.06 ± 3.35 | < 0.001 |
| CTE | 6.04 ± 7.19 | 9.16 ± 11.58 | 0.096 | 1.73 ± 1.82 | 2.32 ± 2.56 | 0.442 | 8.06 ± 7.87 | 14.14 ± 13.02 | 0.027 |
| CLE | 0.06 ± 0.14 | 0.41 ± 1.08 | 0.018 | 0.01 ± 0.02 | 0.04 ± 0.10 | 0.255 | 0.09 ± 0.17 | 0.69 ± 1.37 | 0.017 |
| Change of P1D CCT (μm) | 28.96 ± 22.06 | 35.83 ± 37.84 | 0.252 | 20.40 ± 17.25 | 19.96 ± 14.00 | 0.931 | 32.97 ± 23.14 | 47.36 ± 45.16 | 0.111 |
| Change of P1W CCT (μm) | 6.69 ± 18.57 | 8.73 ± 16.21 | 0.559 | -0.31 ± 11.59 | 3.74 ± 18.27 | 0.477 | 9.53 ± 20.21 | 12.31 ± 13.76 | 0.522 |
| Loss rate of ECD (%) | 0.13 ± 0.11 | 0.11 ± 0.15 | 0.360 | 0.07 ± 0.14 | 0.05 ± 0.12 | 0.118 | 0.13 ± 0.13 | 0.15 ± 0.16 | 0.715 |
CDE cumulative dissipated energy, ATA average torsional amplitude, ATA-FP3 ATA when the foot pad was on gear 3, EATA-FP3 total torsional amplitude on time, equivalent average torsional amplitude-FP3, ALP average longitudinal power, ALP-FP3 average longitudinal power-FP3, EAUP-FP3 total longitudinal power on time and equivalent average ultrasonic power-FP3, CTE cumulative torsional energy, CLE cumulative longitudinal energy, CCT corneal central thickness, ECD endothelial cell density, P1D one day after surgery, P1W one week after surgery