Table 2.
Intraocular pressure readings with Perkins, air and Diaton tonometers, and central and superior pachymetries before and after LASIK.
| Parameter | Presurgery | Postsurgery | Presurgery − postsurgery | p value |
|---|---|---|---|---|
| IOP Perkins (mmHg) (mean (SD)) |
14.02 ± 2.25 | 11.85 ± 2.08 | 2.16 ± 2.47 | p < 0.001∗ |
| IOP air tonometry (mmHg) (mean (SD)) |
14.92 ± 2.98 | 10.86 ± 1.71 | 4.05 ± 2.72 | p < 0.001∗ |
| IOP Diaton (mmHg) (mean (SD)) |
14.18 ± 2.70 | 14.38 ± 3.50 | −0.20 ± 2.73 | 0.590 |
| Central pachymetry (µm) (mean (SD)) |
572.59 ± 45.41 | 475.91 ± 55.95 | 96.67 ± 44.83 | p < 0.001∗ |
| Superior pachymetry (µm) (mean (SD)) |
658.62 ± 31.69 | 645.18 ± 29.41 | 13.44 ± 29.30 | 0.080 |
∗Presurgery versus postsurgery. p < 0.05. Student's paired t-test.