Chronological Versus Non-chronological Phacoemulsification Training

April 26, 2026 updated by: Alaa Abdalsadek Ahmed Sinjab, Sohag University

Chronological Versus Non-Chronological Method in Phacoemulsification Training for Ophthalmology Residents

The goal of this clinical trial is to compare between two methods used in training residents on phacoemulsification. The residents were classified into two groups; the first group were trained on surgical steps in a chronological order, while the second groups in non-chronological order. The outcomes included surgical competency, success rate and incidence of complications.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

800

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

  • Egypt
    • Sohag Governorate
      • Sohag, Sohag Governorate, Egypt, 82511
        • Sohag Faculty of Medicine

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients aged 45 years or more with age-related cataract, and prepared for phacoemulsification.

Exclusion Criteria:

  • Dense nuclear cataract grade IV or dense.
  • Intumescent cataract
  • Complicated and traumatic cataract
  • Zonular dehiscence
  • Poor pupillary dilatation
  • Coexisting ocular disorder (glaucoma, PEX, uveitis,central corneal opacity….)
  • Endothelial cell count 2000 or less
  • Axial length 21 mm or less, 26 mm or more.
  • Previous intraocular surgery
  • Poor vision in the fellow eye due to irreversible condition (6/60 or less)
  • Previous complicated cataract surgery in fellow eye.

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: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group B
Procedure: Non-Chronological phacoemulsification training
Residents trained initially on selected steps (e.g., wound construction, IOL implantation, cortical cleanup) before progressing to more critical steps such as capsulorhexis and phacoemulsification
Active Comparator: Group A
Procedure: Chronological phacoemulsification training
Residents trained step-by-step in the natural order of phacoemulsification (incision, capsulorhexis, hydrodissection, phacoemulsification, irrigation/aspiration, IOL implantation, wound closure).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Success rate
Time Frame: From enrollment till three months after the last surgery
From enrollment till three months after the last surgery

Secondary Outcome Measures

Outcome Measure
Time Frame
Incidence of complications
Time Frame: From enrollment till 3 months after the last surgery
From enrollment till 3 months after the last surgery

Collaborators and Investigators

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

Sponsor

Sohag 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)

January 10, 2023

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

June 1, 2026

Study Registration Dates

First Submitted

January 4, 2026

First Submitted That Met QC Criteria

January 4, 2026

First Posted (Actual)

January 13, 2026

Study Record Updates

Last Update Posted (Actual)

April 28, 2026

Last Update Submitted That Met QC Criteria

April 26, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Soh-Med-25-12-9PD

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

All IPD will be available

IPD Sharing Time Frame

By April 2026 and forever

IPD Sharing Access Criteria

Will be uploaded at clinical trail registration record or upon request via email

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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.

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