True Muscle Transplantation Surgery Versus Augmented Semi Hang Back Recession in Large Angle Exotropia: Evaluation of Efficacy and Lateral Gaze Incomitance

This a randomized clinical trial comparing True muscle transplantation surgery versus Augmented Semi hang back recession for treatment of large angle exotropia

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Key information

Conditions

Large Angle Exotropia Cranial Nerve Diseases Exotropia Eye Diseases Nervous System Diseases Ocular Motility Disorders Strabismus

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Minya University Hospital - Ophthalmology Department

Minya, Minya Governorate, 61111, Egypt

Location status: Recruiting

About this study

large angle exotropia is a challenging to treat surgically .40 patients will be randomized into 2 groups and followed for 6 months to assess alignment and success rate

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients with large angle exotropia more than 50 prism diopters.
No previous squint surgery.

Exclusion criteria

Patients with severe ocular surface diseases as ocular cicatricial pemphigoid and severe dry eye.
Severe systemic illness that prevents general anesthesia

Treatment and study plan

True Muscle Transplantation Surgery

Procedure

true Muscle Transplantation surgery for treatment of large angle Exotropia

Augmented Semi hang back Recession

Procedure

Augmented Semi hang back Recession for treatment of large angle Exotropia

Primary outcomes

Surgical success rate at 6 months

Time frame: 6 months post-surgery

Proportion of patients with ocular alignment within 10 prism diopters of orthotropia measured by prism and alternate cover test

Study contacts

Contact information is provided by the study sponsor or research team.

Hassnaa Mohamed Abdelhameed, Assistant lecturer

CONTACT

[email protected]

+201158861290

Sponsors and collaborators

Lead sponsor

Hassnaa Mohamed Abdelhameed Ahmed

Other

Registry information

Important dates

Study start: 2026
Primary completion: 2026
Study completion: 2027
First posted: Aug 25, 2026
Registry last updated: Aug 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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