|  | Pre-Op | Post-Op | Δ(ECD reduction) | p-value |
---|---|---|---|---|---|
Phaco | Average | 2,428.59 | 2,348.12 | −80.47 (-3 %) | 0.1293 |
 | St Dev | 357.58 | 286.63 |  |  |
 | Min | 1,700 | 1,821 |  |  |
 | Max | 2,900 | 2,717 |  |  |
Femtosecond | Average | 2,481.27 | 2,325.33 | −155.93 (-6 %) | 0.0873 |
 | St Dev | 376.40 | 487.79 |  |  |
 | Min | 1,900 | 1,520 |  |  |
 | Max | 3,456 | 3,100 |  |  |