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RecruitingNCT07731984Updated Jul 28, 2026

Reliability of Optical and Ultrasound Biometry in Silicon Filled Eyes

An observational study in Retinal Detachment, sponsored by Sohag University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-07-28.

Sponsored by Sohag University · Observational

From the registry’s dates

  • Started May 2026; still recruiting 5 months later.
Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
100
Ages
18 Years to 70 Years
Sex
All
01

Study summary

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

Read the 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

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Conditions studied

  • Retinal Detachment

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03

In context

Retinal Detachment

199 studies on the registry are indexed under Retinal Detachment; 29 are open to participants now.

This study's planned enrollment of 100 is above the median of 60 across 58 observational studies indexed under Retinal Detachment.

Browse Retinal Detachment studies →

Lead sponsor

Sohag University is the lead sponsor of 1,230 studies on the registry; 636 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

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

Exclusion criteria

Exclusion Criteria:

  • previous intraocular surgery
  • failed optical biometry acquisition
  • recurrent RD
  • combined scleral buckle surgery
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
100 participants (estimated)
Patient registry
No

Interventions

  • Otheroptical and ulrtasound biometry

    Optical and ultrasound biometry preoperative and postoperative 1 month

06

What researchers measure

Primary outcomes

  1. axial length

    changes in axial length in mm post operative using optical and ultrasound biometry

    Time frame: 1 month

  2. Anterior chamber (AC) depth

    changes in AC depth in mm post operative using optical and ultrasound biometry

    Time frame: 1 month

  3. Intra ocular length (IOL) power

    changes in IOL power in diopter post operative using optical and ultrasound biometry

    Time frame: 1 month

07

Study locations

1 of 1 sites recruiting
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References and documents

Individual participant data

Plan to share: No — evaluate changes in axial length and IOL power after PPV

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 28, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07731984
Lead sponsor
Sohag University
Responsible party
Marwa Mohamed Ahmed (Resident of Ophthalmology , Department of Ophthalmology , Sohag Ophthalmology Hospital, Sohag University) — Principal investigator
First posted
Jul 28, 2026
Start date
May 30, 2026
Primary completion
Jun 30, 2026
Completion
Oct 30, 2026 (estimated)
Last update
Jul 28, 2026

Study contacts

marwa mohamed sohag city., resident of ophthalmology
Contact
marwamara565@gmail.com
01155392054 ext. 01069204441
marwa mohamed sohag city, resident
principal investigator · Sohag University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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