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Comparison of Anwar and Melles Techniques in Deep Anterior Lamellar Keratoplasty (DALK) for Keratoconus Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00850148
Recruitment Status : Completed
First Posted : February 24, 2009
Last Update Posted : January 5, 2012
Information provided by:
Shahid Beheshti University of Medical Sciences

Brief Summary:
This study will be performed on patients who come to labbafinejad ophthalmic clinic from 20 March 2008. Keratoconus diagnosis will be determined by clinical finding in slit lamp, keratometery and topographic characteristics. Patients will be randomly placed in group A and B. In group A, Anwar surgical method and in B, Melles surgical method, will be done. This is not a blind study due to surgeons' knowledge. All patients will receive Btamethazone drop and Chloramphenicol every 6 hours and will be tapered in two months. In the end anatomical results, complications, BCVA, UCVA, astigmatism, endothelial cell numbers will be compared in two groups by using specular microscopy. Contrast sensivity, central corneal diameter, interface wrinkling and opacity will be measured by metrovison, Confoscan, Photoslit in months 3, 6, 12, respectively and will be evaluated afterwards.

Condition or disease Intervention/treatment Phase
Keratoconus Procedure: Anwar Procedure: Melles Not Applicable

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Study Type : Interventional  (Clinical Trial)
Study Start Date : May 2008
Actual Primary Completion Date : June 2009
Actual Study Completion Date : September 2009

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Melles Procedure: Melles
Melles surgical method

Experimental: Anwar Procedure: Anwar
Anwar surgical method

Information from the National Library of Medicine

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Ages Eligible for Study:   15 Years to 45 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • patients with keratoconus
  • 15<age<45
  • contact lens intolerance

Exclusion Criteria:

  • Having a history of any other ophthalmic or systemic problem
  • Central corneal scar
  • descemet's membrane detachment

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00850148

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Iran, Islamic Republic of
Ophtalmic Research Centre
Tehran, Iran, Islamic Republic of, 1666663111
Farid Karimian,MD
Tehran, Iran, Islamic Republic of, 166666
Sponsors and Collaborators
Shahid Beheshti University of Medical Sciences

Layout table for additonal information Identifier: NCT00850148     History of Changes
Other Study ID Numbers: 8721
First Posted: February 24, 2009    Key Record Dates
Last Update Posted: January 5, 2012
Last Verified: February 2009
Keywords provided by Shahid Beheshti University of Medical Sciences:
Additional relevant MeSH terms:
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Corneal Diseases
Eye Diseases