Comparison of Three Corneal Horizontal Marking Techniques Using iTrace™

Completed

• Conditions: Corneal Horizontal Marking.

• Registration Number: NCT01972191
• Lead Sponsor: Yonsei University

Brief Summary

Before astigmatism reducing surgery, accurate corneal horizontal marking before surgery is important. Due to new corneal topographic method, iTrace™ surgical workstation, precise evaluation of corneal horizontal marking is available. In this study the investigators compared three known corneal horizontal making techniques and evaluate accuracy of each methods using iTrace™.

Detailed Description

Not available

Basic Information
|
Recruitment & Eligibility
|
Study & Design
|
Trial Locations

Study Timeline

• Study Start: 2012-10
• Primary Completion: 2013-08
• Study Completion: 2013-08
• Status Verified: 2013-10
• Study First Submitted: 2013-10-15
• Study First Submitted QC: 2013-10-23
• Last Update Submitted: 2013-10-23
• Study First Posted: 2013-10-30
• Last Update Posted: 2013-10-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 156

Inclusion Criteria

• Patients who were scheduled to have cataract surgery
• Age between 50 to 85 years

Read More

Exclusion Criteria

• With an underlying corneal or conjunctival disorder

Read More

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The vertical height deviation and rotational axis misalignment amount of each three marking techniques, evaluated by iTrace surgical workstation.	Within 10 minutes after corneal horizontal marking.	Nasal and temporal marked spots saved in iTrace surgical workstation program.

Trial Locations

Locations (1)

Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine; 🇰🇷 Seoul, Korea, Republic of