Reliability of Optical and Ultrasound Biometry in Silicon Filled Eyes

July 22, 2026 updated by: Marwa Mohamed Ahmed, Sohag University
Optical and ultrasound biometry will be done for Patients who will undergo pars plana vitrectomy (PPV) and silicon oil injection preoperative and post operative 1 month

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Optical and ultrasound biometry will be done for Patients who will undergo PPV and silicon oil injection preoperative and post operative 1 month , patients will be subdevided into 2 groups PPV with silicon oil tamponade and another group phacovitrectomy with silicon oil tamponade for assesment of postoperative refraction

Study Type

Observational

Enrollment (Estimated)

100

Contacts and Locations

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

Study Contact

  • Name: marwa mohamed sohag city., resident of ophthalmology
  • Phone Number: 01069204441 01155392054
  • Email: marwamara565@gmail.com

Study Locations

  • Egypt
      • Sohag, Egypt
        • Recruiting
        • Faculty of Medicine Sohag University
        • Contact:

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

Sampling Method

Probability Sample

Study Population

number of eyes : 100 eyes data will be collected preoperative and post operative 1 month

Description

Inclusion Criteria:

  • patients with clinical diagnosis of retinal detachment (RD)
  • planned for pars plana vitrectomy with silicon oil tamponade

Exclusion Criteria:

  • previous intraocular surgery
  • failed optical biometry acquisition
  • recurrent RD
  • combined scleral buckle surgery

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
Measure Description
Time Frame
axial length
Time Frame: 1 month
changes in axial length in mm post operative using optical and ultrasound biometry
1 month
Anterior chamber (AC) depth
Time Frame: 1 month
changes in AC depth in mm post operative using optical and ultrasound biometry
1 month
Intra ocular length (IOL) power
Time Frame: 1 month
changes in IOL power in diopter post operative using optical and ultrasound biometry
1 month

Collaborators and Investigators

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

Sponsor

Sohag University

Investigators

  • Principal Investigator: marwa mohamed sohag city, resident, 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)

May 30, 2026

Primary Completion (Actual)

June 30, 2026

Study Completion (Estimated)

October 30, 2026

Study Registration Dates

First Submitted

June 26, 2026

First Submitted That Met QC Criteria

July 22, 2026

First Posted (Actual)

July 28, 2026

Study Record Updates

Last Update Posted (Actual)

July 28, 2026

Last Update Submitted That Met QC Criteria

July 22, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Soh-Med-26-3-1MS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

evaluate changes in axial length and IOL power after PPV

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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