Clinical trials: Exotropia
Intermittent Exotropia
Lateral Rectus Muscle and Anterior Segment Optical Coherence Tomography (AS-OCT)
•Background and study aims : The investigators conducted this study to evaluate the movement of extraocular muscle after strabismus surgery with non-invasive tool called AS-OCT.
- Trial name
- NCT02383381
- Testing
- lateral rectus recession
- Volunteers
- 30 people
- Sponsor
- Samsung Medical Center
Surgical Procedure, Unspecified, Ocular Discomfort
Lateral Rectus Muscle Tendon Elongation
To evaluate a technique using resected medial rectus muscle transplantation for elongation of Lateral rectus tendon as a monocular surgery for large angle sensory exotropia.
- Conditions
- Surgical Procedure, Unspecified, Ocular Discomfort, Strabismus, Divergent
- Trial name
- NCT04286945
- Testing
- LATERAL RECTUS MUSCLE AUGMENTED RECESSION BY ELONGATION OF THE TENDON WITH AUTOGRAFT FROM RESECTED MEDIAL RECTUS MUSCLE
- Volunteers
- 16 people
- Sponsor
- Tanta University
Intermittent Exotropia
Study of Non-surgical Treatment Versus Observation in Asian Children With Intermittent Exotropia
Non-surgical treatment (ie. patching or fusion exercises) of intermittent exotropia may help in increasing control of strabismus
- Trial name
- NCT01267500
- Testing
- Non surgical therapy
- Where
- Singapore
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Exotropia, Evaluation of Surgical Techniques in Correcting Exotropia
Evaluation of The Techniques in Correcting Large-Angle Exotropia
The aim of this study is to evaluate the techniques of combined lateral rectus muscle recession with hang back and combined lateral rectus muscle recession with z-tenotomy in correcting large-angle exotropia.
- Trial name
- NCT06084442
- Testing
- Evaluation of The Techniques of Lateral Rectus Muscle Combined Recession with Hang Back and Combined Recession with Z-Tenotomy in Correcting Large-Angle Exotropia
- Volunteers
- 50 people
- Sponsor
- Tanta University
Intermittent Exotropia
Relationship of Age at Surgery to Surgical Outcome After Surgery for Intermittent Exotropia
It is prospective cohort study to compare ( the surgical outcome) the motor and sensory outcome of early surgery (≤5 years of age) and late surgery ( ≥ 7 years of age) for intermittent exotropia.
- Trial name
- NCT04307160
- Testing
- Bilateral lateral rectus recession
- Volunteers
- 124 people
- Sponsor
- Cairo University
Intermittent Exotropia
Symmetric vs Asymmetric BLR Recession in Management of Basic IXT With Ocular Dominance
The study aims to investigate ocular motor and sensory outcomes of two different strategies of lateral rectus recession; symmetric and asymmetric, in management of basic type intermittent exotropia with ocular dominance.
- Trial name
- IXT (NCT05234957)
- Testing
- Bilateral Lateral Rectus Recession
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Benha University
Exotropia
Intermittent Exotropia in Egyptian Population
Strabismus is one of the most frequent ocular problems among developmentally normal children. The prevalence of strabismus varies among different regions, ranging from 0.06% in Japan to 5.65% in China.
- Trial name
- NCT06312865
- Testing
- Ophthalmic exam
- Volunteers
- 600 people
- Sponsor
- Assiut University
Intermittent Exotropia
Improving Control of Intermittent Exotropia
To determine whether use of dichoptic movies for 8 weeks may be helpful in improving control alignment in children with intermittent exotropia (IXT), thus allowing IXT to be managed non-surgically
- Trial name
- NCT07272005
- Testing
- dichoptic videos, standard videos
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Retina Foundation of the Southwest
Intermittent Exotropia
Lateral Rectus Muscle and Anterior Segment Optical Coherence Tomography (AS-OCT) in Two Recession Surgeries
Background and study aims : The investigators conducted this study to compare the movement of extraocular muscle after two types of recession surgery with non-invasive tool called AS-OCT.
- Trial name
- AS-OCT (NCT02450162)
- Testing
- lateral rectus recession (bilateral)
- Volunteers
- 60 people
- Sponsor
- Samsung Medical Center
Exotropia
Observation Versus Occlusion Therapy for Intermittent Exotropia
The present study is being conducted to assess the natural history of intermittent exotropia and to establish the effectiveness of occlusion in its treatment.
- Trial name
- IXT2 (NCT01032330)
- Testing
- occlusion treatment
- Where
- 2 sites in United States
- Volunteers
- 611 people
- Sponsor
- Jaeb Center for Health Research
Intermittent Exotropia, Exercises
The Effect of Oculo-Motor Exercises in Intermittent Exotropia
In childhood strabismus, exotropia is most frequently seen with intermittent exotropia and convergence failure in the first decade of life.
- Trial name
- NCT03661476
- Testing
- Oculo-Motor Exercises (OME)
- Where
- Turkey (Türkiye)
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Medipol University
Strabismus, Esotropia
Strabismus Surgery and Driving Ability
The strabismus impacts binocular visual acuity and stereoscopy. Thus, driving capacities of patients with strabismus may be reduced.
- Conditions
- Strabismus, Esotropia, Exotropia
- Trial name
- NCT02570555
- Where
- France
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University Hospital, Strasbourg, France
Esotropia, Exotropia
Comparison of Two Treatments for Strabismus Correction: Botulinum Toxin A Associated to Surgery and Surgery Alone
Two different treatments were given to large angle horizontal strabismus (eso and exotropia) adult patients who agree to participate of the study. Inform consents were required for participants.
- Trial name
- NCT01460355
- Testing
- Botulinum Toxin Type A, saline solution
- Where
- Brazil
- Volunteers
- 23 people
- Sponsor
- University of Campinas, Brazil
Intermittent Exotropia
Full-Time Occlusion Therapy for Intermittent Exotropia in Children
Determine whether full-time patching is more effective than observation for improving distance control of IXT after 3 months of treatment (on-treatment outcome).
- Trial name
- IXT7 (NCT05462821)
- Testing
- Eye Patch
- Where
- 25 sites in United States
- Volunteers
- 73 people
- Sponsor
- Jaeb Center for Health Research
Strabismus, Exotropia
Validation of a Smartphone-based Intelligent Diagnosis and Measurement for Strabismus
The current measurement methods of strabismus include the corneal light reflection method, prism alternate covering, etc., which especially rely on the subjective experience of doctors, and there is a large error between…
- Conditions
- Strabismus, Exotropia, Esotropia, Vertical Strabismus
- Trial name
- NCT05615519
- Testing
- A new technology based on 3D reconstruction and deep learning algorithm to achieve an automatic diagnosis of strabismus based on patient-sourced videos of programmatic cover tests.
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Intermittent Exotropia
Near Vergence Training for Distance Control in Intermittent Exotropia
Intermittent Exotropia (IXT) is a common type of eye misalignment where one eye periodically turns outward, and control is typically much worse when looking at objects far away than close up.
- Trial name
- NCT07642687
- Testing
- Home-based near eye training program
- Where
- Hong Kong
- Volunteers
- 42 people
- Sponsor
- The Hong Kong Polytechnic University
Intermittent Exotropia
Early Results of Slanted Recession of the Lateral Rectus Muscle for Intermittent Exotropia With Convergence Weakness
This study was conducted to evaluate results of slanted recession of the lateral rectus muscle for intermittent exotropia with convergence weakness
- Trial name
- NCT02131792
- Testing
- Slanted recession of the lateral rectus muscle
- Where
- South Korea
- Volunteers
- 31 people
- Sponsor
- Kyungpook National University Hospital
Exotropia
Evaluation of Exotropia After Patching the Eye or After Prism Adaptation
This study intends to determine the number and percent of subjects initially diagnosed with divergence excess exotropia which would be reclassified as simulated divergence excess exotropia if tested after 24 hours of monocular…
- Trial name
- DESDEE (NCT05242510)
- Testing
- Patching, Prism Adaptation
- Where
- 9 sites in United States, Canada and 3 more
- Volunteers
- 1 people
- Sponsor
- University of Rochester
Large Angle Exotropia
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
- Trial name
- NCT07784842
- Testing
- True Muscle Transplantation Surgery, Augmented Semi hang back Recession
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Hassnaa Mohamed Abdelhameed Ahmed
Strabismus, Exotropia
A Novel Diagnostic Method for Exotropia Using Video-oculography
Thirty-four subjects with constant exotropia were included. Two independent ophthalmologists measured the angle of ocular deviation using alternate prism cover test (APCT).
- Trial name
- NCT03119311
- Testing
- Video-oculography, APCT
- Where
- South Korea
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Inje University