Comparison of Intraocular Lens Power Calculation Methods After Corneal Laser Refractive Surgery in Axial and Refractive Ammertropia

November 3, 2013 updated by: Mohammed El Bahrawy, The National Eye Hospital, Cairo, Egypt
The study aims at determining the best biometry calculation formula to be used in IOL calculation of cataract patients how previously underwent laser refractive correction surgery

Study Overview

Status

Unknown

Conditions

Detailed Description

Patients undergoing laser refractive surgery will will be investigated in means of Pentacam testing and IOL master biometry both preoperative and 6 weeks postoperative to determine which IOL calculation formula is the nearest and most accurate to preoperative records in different refractive sittings.

Study Type

Observational

Enrollment (Anticipated)

400

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

  • Egypt
      • Cairo, Egypt
        • Recruiting
        • Watany Eye Hopsital
        • Contact:
        • Principal Investigator:
          • Ahmed Assaf, MD/FRCS
        • Principal Investigator:
          • Rami R Fikry, MD/FRCS
        • Principal Investigator:
          • Mohamed O El Bahrawy, MS
        • Principal Investigator:
          • Ahmed Osama, MS

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Patient undergoing laser refractive surgery

Description

Inclusion Criteria:

  • all patient undergoing laser refractive surgery

Exclusion Criteria:

  • previous ophthalmic surgery
  • previous trauma
  • ocular pathology other than refractive error

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Best Selected IOL calculation formula
Time Frame: 6 weeks
6 weeks

Collaborators and Investigators

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

Sponsor

The National Eye Hospital, Cairo, Egypt

Investigators

  • Principal Investigator: Rami R Fikry, MD/FRCS, Watany Eye Hospital
  • Study Director: Ahmed Assaf, MD/FRCS, Watany Eye Hospital
  • Principal Investigator: Ahmed Osama, MS, Watany Eye Hospital
  • Principal Investigator: Moahmed O El Bahrawy, MS, Watany Eye Hospital

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.

Helpful Links

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, 2013

Primary Completion (Anticipated)

March 1, 2014

Study Completion (Anticipated)

March 1, 2014

Study Registration Dates

First Submitted

November 3, 2013

First Submitted That Met QC Criteria

November 3, 2013

First Posted (Estimate)

November 8, 2013

Study Record Updates

Last Update Posted (Estimate)

November 8, 2013

Last Update Submitted That Met QC Criteria

November 3, 2013

Last Verified

November 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • LASIK/IOL

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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