Year: 2025
Type: article
Study design: Observational Study
Abstract: Purpose: to access accuracy of 10 intraocular lens (IOL) calculation formulas.Patients and methods. 784 patients (784 eyes) formed study group. Every patient underwent phacoemulsification (PE) with IOL implantation. Biometry for IOL calculation was performed on IOL-Master 500 and 700 (Carl Zeiss, Germany). 1 month after PE spherical equivalent of refraction (Topcon-8800, Japan) was assessed. To compare refractive results of formulas, mean calculation error (ME), mean absolute calculation error (MAE) and formula performance index (FPI) were assessed.Results. The following formulas are presented in descending order of the FPI: Kane (10.20), Hill RBF (10.00), Barrett (9.62), Holladay I (9.52), Hoffer QST (9.26), Ladas Super Formula (9.17), EVO (9.09), Hoffer Q (8.40), SRK/T (8.13), Pearl DGS (8.00). The lowest MAE shows Kane formula (0.33 ± 0.25), Hill RBF (0.33 ± 0.24) and Barrett (0.34 ± 0.25). The greatest MAE — SRK/T (0.36 ± 0.27), Hoffer Q (0.36 ± 0.25) and Pearl DGS (0.39 ± 0.37).Conclusion. The highest accuracy was demonstrated by Kane, Hill RBF and Barrett formulas, however, other formulas (SRK/T, Holladay I, Hoffer Q, Ladas Super Formula, EVO, Hoffer QST, Pearl DGS) demonstrate comparable results with the above.
Source: Ophthalmology in Russia
Authors: D. F. Belov, V. P. Nikolaenko, D. E. Dmitrieva
Institution: St Petersburg University
Language: English
Subfield: Ophthalmology
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4409211788