Randomized, Prospective Comparison of the Outcome of Toric Implantable Contact Lens (TICL) and Q-LASIK for the Correction of Myopia With Astigmatism

March 16, 2010 updated by: Wenzhou Medical University

Randomized, Prospective Comparison of the Outcome of TICL and Q Value Customized LASIK for the Correction of Myopia With Astigmatism

The objective is to conduct a contralateral prospective clinical study to compare the safety, efficacy, and quality of vision of the STAAR Surgical Co. Toric Implantable Contact Lens TICL) versus Custom Laser Vision Correction (Q-LASIK) in human eyes for the correction of myopia with astigmatism.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Wenzhou, Zhejiang, China, 325027
        • Eye Hospital of Wenzhou Medical College

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 21-45 years old
  • Documented stable refraction for at least 1 year
  • (-3.0 to -8.0D of myopia with -1.0 to -4.0D of astigmatism or SE from -3.5 to -10D
  • BSCVA: 20/20 or better
  • Pupil diameter: smaller than 7mm under mesopic condition
  • Contact lens discontinued 3 weeks and 1 week for hard and soft wearers respectively

Exclusion Criteria:

  • Evidence of progressive or acute disease
  • Evidence of connective tissue disease or clinically significant atopic disease
  • ACD less than 2.8mm from endothelium
  • ECC less than 2200 cells/mm2
  • Narrow angle of anterior chamber
  • Residual stromal thickness less than 280 microns

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: TICL group
Procedure: the implantation of toric implantable collamer lens
perform the implantation of toric implantable collamer lens for both eyes
Other Names:
  • TICL
Active Comparator: LASIK group
Procedure: customized laser-assisted in situ keratomileusis
perform Q-factor customized laser-assisted in situ keratomileusis for both eyes
Other Names:
  • Q-factor customized LASIK

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Comparing the efficacy, predictability, stability and safety of TICL versus Q-LASIK
Time Frame: 1week, 1,3,6 months
1week, 1,3,6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Comparing wavefront aberrometry of TICL vs Q-LASIK Comparing contrast sensitivity of TICL vs Q-LASIK Comparing patient satisfaction of TICL vs Q-LASIK
Time Frame: 1, 3, 6 months
1, 3, 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Wenzhou Medical University

Collaborators

Staar Surgical Company

Investigators

  • Study Director: Qin Mei Wang, Eye Hospital of Wenzhou Medical College

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2007

Primary Completion (Actual)

December 1, 2008

Study Completion (Anticipated)

March 1, 2010

Study Registration Dates

First Submitted

March 16, 2010

First Submitted That Met QC Criteria

March 16, 2010

First Posted (Estimate)

March 17, 2010

Study Record Updates

Last Update Posted (Estimate)

March 17, 2010

Last Update Submitted That Met QC Criteria

March 16, 2010

Last Verified

October 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 20091231

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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