A Comparison of the Accuracy of Toric Intraocular Lens Formulas

Status Completed

Clinical Trial Summary

Clinical Trial Description

To compare the accuracy of the Abulafia-Koch, the Barrett, the Barrett Post ,the EVO , the new Holladay with total surgical-induced astigmatism, the Kane and and the Næser-Savini toric intraocular lens (IOL) power formulas using a large database of toric IOL refractive outcomes.Retrospective consecutive case series.One hundred seventy-two eyes of 172 patients who had a toric IOL inserted during surgery.One eligible eye from patients having uncomplicated cataract surgery with insertion of an Alcon SN6AT(2-9) IOL (Alcon Laboratories, Inc, Fort Worth, TX) from 1 surgeon were included in the study. pre-operative were measured using either the IOLMaster 500 or 700 (Carl Zeiss Meditec AG, Jena, Germany). Using vector calculation, the predicted postoperative refractive astigmatism was calculated for each formula. This was compared with the actual postoperative refractive astigmatism to give the prediction error. ;

Study Design

Related Conditions & MeSH terms

Astigmatism

Clinical Trial Details

NCT number	NCT04776603
Study type	Observational
Source	Wenzhou Medical University
Contact
Status	Completed
Phase
Start date	January 2015
Completion date	January 2020

View Details

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