Hoffer QST

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

28.10.2026 4 min read

Moussa IOL formula: the accuracy advantage was small

Cataract IOL IOL power calculation Barrett Universal II IOL calculation Hoffer QST PEARL-DGS Moussa formula Formula validation

In a 2,550-eye retrospective multicenter dataset, Moussa had the lowest mean absolute error, but its margin over the closest formulas was measured in hundredths of a diopter.

doi: 10.1097/j.jcrs.0000000000002079

26.10.2026 4 min read

IOL calculation in high myopia: twelve formulas compared

Cataract IOL IOL calculation High myopia Long eyes Hoffer QST PEARL-DGS

In 255 long eyes, Hoffer QST had the lowest absolute error at 0.33 D, yet only about 70% of results from it and the strongest alternatives fell within ±0.50 D.

doi: 10.1007/s10792-026-04016-8