Clinical trials: Exotropia
Intermittent Exotropia, Strabismus
The Analysis of Ocular Deviations Between Dominant and Non-dominant Eye Using Video-oculography (VOG) in Intermittent Exotropia
Fifteen subjects with intermittent exotropia were included. The subjects were asked to fixate on a black-on-white optotype at 1 m, which subtended a visual angle of 50 min of arc, equating to a Snellen optotype of 20/200.
- Trial name
- NCT03641040
- Testing
- Video-oculography, Alternative prism cover test
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Inje 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
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, 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
Exotropia
Surgery for Large Angle Exotropia Two Muscles Versus Three Muscles
Comparison Between The Results Of Two Muscles Surgery And Three Muscles Surgery For The Treatment Of Large Angle Exotropia
- Trial name
- XT (NCT05643456)
- Testing
- surgery
- Where
- Egypt
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Cairo University
Exophoria
Cervical Manipulation (OAA Technique) in Exophories
Objetive: to assess the efficacy of the occipito-atlas-axis cervical manipulation technique to correct ocular divergence in subjects with exophoria. Design: quantitative, experimental, longitudinal and prospective study.
- Trial name
- NCT04901533
- Testing
- O-A-A, cranial listening
- Where
- Spain
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Seville
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
Surgical Correction, V Pattern
Surgical Correction of V Pattern Intermittent Exotropia Without Inferior Oblique Muscle Overaction
Evaluation of the results of surgical correction of V pattern intermittent exotropia without inferior oblique muscle overaction by either performing bilateral lateral rectus recession (BLR) alone or performing bilateral lateral…
- Conditions
- Surgical Correction, V Pattern, Intermittent Exotropia, Inferior Oblique Muscle
- Trial name
- NCT07180199
- Testing
- Bilateral Lateral Rectus Recession (BLR Recession), Bilateral Lateral Rectus Recession with Upward Transposition
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Tanta University
Dynamic Stereopsis in Intermittent Exotropia Patients
A Novel Dynamic Random-dot Stereopsis Assessment to Measure the Stereopsis in Intermittent Exotropia
A novel dynamic random-dot stereopsis test that included motion + disparity (MD), motion (M), and disparity (D), in which the disparity cues range from 200 to 1200 arc-seconds was used.
- Trial name
- NCT04152122
- Testing
- The dynamic stereopsis test
- Where
- China
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
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
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