Table 1.
Parameter | Group 1 n = 19 | Group 2 n = 19 | Group 3 n = 18 | One-way ANOVA, F-Value | P value |
Age | 69.6 ± 9.2 | 65.8 ± 7.8 | 70.8 ± 9.9 | 1.58 | NS |
ACD | 2.6 ± 0.20 | 2.8 ± 0.37 | 2.59 ± 0.45 | 1.97 | NS |
UCVA | |||||
Pre-operative | 0.12 ± 0.14 | 0.09 ± 0.13 | 0.11 ± 0.9 | 0.18 | NS |
Day one | 0.28 ± 19a | 0.39 ± 23c | 0.37 + 0.27b | 1.22 | NS |
Three month | 0.51 ± 0.16c | 0.61 ± 0.20c | 0.61 ± 0.20c | 1.51 | NS |
Repeated measure within group ANOVA | F = 15.0 P = 0.0001 |
F = 28.29 P = 0.0001 |
F = 23.5 P = 0.0001 |
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BCVA | |||||
Pre-operative | 0.18 ± 0.11 | 0.17 ± 0.19 | 0.18 ± 0.13 | 0.04 | NS |
Day one | 0.46 ± 0.23b | 0.69 ± 0.26c | 0.55 ± 0.31a | 1.70 | NS |
Three month | 0.69 ± 0.24c | 0.88 ± 0.18c | 0.79 ± 0.23c | 2.73 | NS |
Repeated measure within group ANOVA | F = 34.17 P = 0.0001 |
F = 43.8 P = 0.0001 |
F = 23.5 P = 0.0001 |
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Corneal thickness | |||||
Pre-operative | 560.7 ± 91.5 | 567.5 ± 44.07 | 576.0 ± 50.2 | 0.25 | NS |
Day one | 645.8 ± 94.1c | 665.5 ± 141.9b | 670.6 ± 117.1b | 0.32 | NS |
Three month | 573.4 ± 73.6 | 586.1 ± 29.0 | 586.7 ± 36.0 | 1.50 | NS |
Repeated measure within group ANOVA | F = 17.5 P = 0.0001 |
F = 11.4 P = 0.0001 |
F = 11.19 P = 0.0001 |
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Endothelial cell count. | |||||
Pre-operative | 2311.73 ± 288.0 | 2359.78 ± 383.2 | 2526.6 ± 305.4 | 2.36 | NS |
Day one | 2021.20 ± 201.0 | 2035.05 ± 377.0 | 2196.4 ± 378.2 | 0.11 | NS |
Three month | 1973.00 ± 537.0 | 1959.00 ± 503.0 | 2132.0 ± 482.0 | 0.82 | NS |
Repeated measure within group ANOVA | F = 4.2 P = 0.004 |
F = 2.20 P = NS |
F = 17.5 P = 0.0001 |
a: p < 0.05, b: <0.01, c: <0.001 as compared to preoperative parameter
UCVA = Uncorrected visual acuity
BCVA = Best corrected visual acuity
ANOVA = Analysis of Variance
NS = Not Significant