Comparative Analysis of Twenty Intraocular Lens Power Calculation Formulas in Medium-Long Eyes. | ScholarDeck

Paper

Comparative Analysis of Twenty Intraocular Lens Power Calculation Formulas in Medium-Long Eyes.

New research · Ophthalmology

Diagnostics (Basel, Switzerland) · 1mo

Cohort studyDiagnostics (Basel, Switzerland)· Jul 2026

Comparative Analysis of Twenty Intraocular Lens Power Calculation Formulas in Medium-Long Eyes.

Wiktor Stopyra, Oleksiy Voytsekhivskyy, Andrzej Grzybowski

Read paper

Cataract & RefractiveCohort studyClinical practiceQ2IF 4.4

SRK/T formula gave the most accurate lens power predictions in medium-long eyes.

Comparative Analysis of Twenty Intraocular Lens Power Calculation Formulas in Medium-Long Eyes.

Wiktor Stopyra … Andrzej Grzybowski

Diagnostics (Basel, Switzerland) · Jul 2026 · Q2 in General Medicine

Background

The choice of appropriate intraocular lens (intraocular lens) power calculation formulas depends on the axial length of the eye.

Purpose

This study compares the accuracy of twenty formulas in medium-long eyes (24.50-25.99 mm).

Methods

Data of patients with medium-long eyes, who underwent uneventful phacoemulsification between January 2018 and September 2023, were retrospectively reviewed.

98.95%

Results

98.95%

SRK/T kept eye-focus errors in the safe range in nearly all patients

More results

SD values among the twenty formulas ranged from 0.179 (SRK/T) to 0.468 (Olsen OLCR).

The SRK/T formula, followed by Holladay 1, demonstrated significantly higher accuracy than most other formulas, while Olsen (OLCR) and Castrop were the least accurate.

“

Conclusion

SRK/T provided the highest accuracy in medium-long eyes, with Holladay 1 performing similarly well. All evaluated formulas achieved prediction error within ±0.50 D in over 74% of cases.

Read paper