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Clinical Evaluation of Intraocular Caliper-assisted Capsulotomy for Age-related Cataract

Cataract Extraction Clinical Trial

Official title:
Comparison of Intraocular Caliper-assisted and Verion Navigation System-assisted Capsulotomy in Phacoemulsification Surgery: A Randomized Non-inferiority Trial

Clinical Trial Summary

The purpose of this study is to compare the accuracy of capsulotomy assisted by intraocular caliper and Verion navigation system in phacoemulsification surgery and postoperative visual quality of patients.

Clinical Trial Description

Continuous curvilinear capsulorhexis (CCC) is an important and technically challenging procedure in cataract surgery. However, most surgeons perform CCC by experience or referring to the pupil size, which is highly subjective and the accuracy of capsulorhexis is unsatisfactory. The investigators developed a new modified intraocular caliper with standard calibration on the rinse needle, which can measure and locate the position of capsulorhexis. The surgeon can gently use the blunt needle in the front of the intraocular caliper to further make corresponding markers on the lens anterior capsule, and then carry out capsulotomy according to the marks. We found intraocular caliper-assisted capsulotomy can obviously improve the accuracy of capsulorhexis. The purpose of this study is to compare the accuracy and postoperative visual quality of intraocular caliper-assisted capsulotomy with those of digital image projection device VERION navigation system. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04977115
Study type Interventional
Source Zhongshan Ophthalmic Center, Sun Yat-sen University
Contact Xiaoyun Chen, PhD
Phone +86 13632343642
Email chenxiaoyun@gzzoc.com
Status Not yet recruiting
Phase N/A
Start date July 26, 2021
Completion date April 30, 2022
View Details
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