NCT04776603

A Comparison of the Accuracy of Toric Intraocular Lens Formulas

A Comparison of the Accuracy of Many Different Toric Intraocular Lens Formulas

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 172 (actual)
• Sponsor: Wenzhou Medical University · Academic / Other
• Sex: All
• Age: 21 Years – 90 Years
• Healthy volunteers: —

Summary

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

Detailed 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.

Conditions

• Astigmatism

Timeline

• Start date: 2015-01-01
• Primary completion: 2019-12-01
• Completion: 2020-01-01
• First posted: 2021-03-01
• Last updated: 2021-03-01

Locations

1 site across 1 country: China