Assessment of the Preoperative Risk Factors for the Development of Post-LASIK Ectasia

January 29, 2025 updated by: Walid Shaban Abdella, Al-Azhar University
: Laser-assisted in situ keratomileusis (LASIK) is one of the most widely performed refractive surgeries, offering effective and long-lasting correction for visual refractive errors. While LASIK has a high success rate and is generally safe, post-LASIK ectasia remains a rare but serious complication that compromises visual outcomes. Several risk factors for post-LASIK ectasia have been identified. The aim of the present study is to determine the preoperative risk factors for the development of post-LASIK ectasia.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

13

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

No

Sampling Method

Non-Probability Sample

Study Population

LASIK patients

Description

Inclusion Criteria:

  • Clinical diagnosis of corneal ectasia was made by progressive central or inferior corneal steepening, increased myopia and/or astigmatism, and decreased visual acuity

Exclusion Criteria:

  • Subjects who had glaucoma diagnosis, other corneal surgeries (other than LASIK), and central corneal opacity

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
Randleman ectasia score
Time Frame: At the baseline
At the baseline

Collaborators and Investigators

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

Sponsor

Al-Azhar University

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 (Actual)

October 1, 2013

Primary Completion (Actual)

August 1, 2024

Study Completion (Actual)

August 25, 2024

Study Registration Dates

First Submitted

January 29, 2025

First Submitted That Met QC Criteria

January 29, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 29, 2025

Last Verified

January 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Post-LASIK Ectasia

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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.

Clinical Trials on Lasik Eye Surgery

Clinical Trials on LASIK

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Chile

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe