Table 3.
Spearman Correlation Between Effective Optical Zone, Myopia, Myopic Astigmatism, and Spherical Equivalent in LASIK, PRK, and SMILE, Presented as r Value (p value)
| LASIK Sphere | PRK Sphere | SMILE Sphere | LASIK MRSE | PRK MRSE | SMILE MRSE | LASIK Cylinder | PRK Cylinder | SMILE Cylinder | |
|---|---|---|---|---|---|---|---|---|---|
| EOZ Area | 0.085 (0.362) | 0.119 (0.156) | 0.454 (0.003) | −0.019 (0.840) | −0.026 (0.757) | 0.377 (0.015) | −0.459 (<0.001) | −0.716 (<0.001) | −0.429 (0.005) |
| EOZ Major Diameter | 0.228 (0.013) | 0.280 (0.001) | 0.508 (0.001) | 0.113 (0.227) | 0.140 (0.095) | 0.432 (0.005) | −0.520 (<0.001) | −0.717 (<0.001) | −0.452 (0.003) |
| EOZ Minor Diameter | −0.338 (<0.001) | −0.422 (<0.001) | 0.331 (0.034) | −0.359 (<0.001) | −0.496 (<0.001) | 0.277 (0.079) | −0.088 (0.343) | −0.376 (<0.001) | −0.336 (0.032) |
| EOZ Eccentricity | 0.396 (<0.001) | 0.563 (<0.001) | 0.246 (0.121) | 0.293 (0.001) | 0.454 (<0.001) | 0.209 (0.190) | −0.491 (<0.001) | −0.538 (<0.001) | −0.171 (0.286) |
| EOZ Absolute Decentration from Vertex | 0.135 (0.147) | 0.083 (0.324) | −0.122 (0.447) | 0.140 (0.131) | 0.033 (0.692) | −0.109 (0.498) | −0.019 (0.841) | −0.327 (<0.001) | 0.068 (0.673) |
Notes: Values in bold formatting are significant at a level of p<0.05.
Abbreviations: EOZ, effective optical zone; MRSE, manifest refractive spherical equivalent, corrected using the refractive index of the cornea.