K6 formula

31.10.2026 4 min read

IOL calculation after myopic laser correction: 3,738 eyes

Cataract IOL Refractive surgery LASIK Total keratometry IOL calculation EVO formula K6 formula Post-laser IOL calculation Posterior corneal curvature No-history IOL calculation TransPRK

In a multicenter database, modern formulas outperformed Haigis-L and Shammas-PL, while versions using posterior corneal curvature were more accurate than corresponding no-PCC methods.

doi: 10.1016/j.ajo.2026.07.059

29.10.2026 4 min read

IOL calculation in short eyes: no single formula won every subgroup

Cataract IOL IOL power calculation Short eye Short axial length IOL calculation Hoffer QST PEARL-DGS Formula validation EVO formula K6 formula

Across 271 short eyes, EVO and Holladay 1 had the lowest overall mean error, while Haigis, K6, Kane and PEARL-DGS led in particular axial-length ranges.

doi: 10.1007/s00417-026-07505-9