Corneal Astigmatism Measurement Study

Completed

• Conditions: Astigmatism

• Registration Number: NCT00818532
• Lead Sponsor: Alcon Research

Brief Summary

To assess which commercially available measurement device is most accurate in measuring low (\< 1.0 D) degrees of corneal astigmatism.

Detailed Description

Not available

Study Timeline

• Study Start: 2008-12
• Study First Submitted: 2009-01-06
• Study First Submitted QC: 2009-01-06
• Study First Posted: 2009-01-07
• Primary Completion: 2009-04
• Study Completion: 2009-04
• Status Verified: 2009-07
• Last Update Submitted: 2012-04-06
• Last Update Posted: 2012-04-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• 50 years of age and older
• Proof of eye exam within the last 3 months
• Corneal astigmatism of <1.0 diopter

Exclusion Criteria

• Prior history of refractive or corneal surgery
• Corneal trauma/disease
• Intraocular surgery

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Measurement of corneal power	Day 1

Trial Locations

Locations (1)

Alcon Call Center for Trial Locations; 🇺🇸 Fort Worth, Texas, United States