Clinical trials: Fixation, Ocular
Refractive Errors
Anxiety-related Fixation Instability During LASIK
Anxiety is common among patients undergoing eye surgery, which is typically performed under topical anesthesia while the patient is awake.
- Trial name
- NCT06148428
- Testing
- Laser in situ keratomileusis (LASIK)
- Where
- Egypt
- Volunteers
- 2,435 people, healthy volunteers welcome
- Sponsor
- Assiut University
Edentulous Alveolar Ridge In Mandible, Complete Edentulism
Using Two Different Attachments (Equator Vs Ball and Sockets) Retaining Mandibular Implant Overdenture in Order to See Bone Changes and Occlusal Force Distribution
Alveolar ridge resorption is an unavoidable consequence in complete denture wearers due to limited retention and stability. Implant-retained overdentures enhance retention, stability, and masticatory performance while reducing…
- Conditions
- Edentulous Alveolar Ridge In Mandible, Complete Edentulism, Dental Implant, Attachments
- Trial name
- NCT07241481
- Testing
- Ball & Socket Attachment, Equator Attachment
- Where
- Egypt
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Cataract
A Comparison of the Diagnostic Confidence and Image Quality Between the Eyoto Theia (RDSL) and a Predicate Device.
A clinical study has been identified as a requirement for the RDSL (Theia). This study involves a clinical comparison of the imaging from the RDSL with that of a predicate device.
- Trial name
- NCT05783583
- Testing
- Remote Digital Slit Lamp
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Eyoto Group Ltd
Age-Related Macular Degeneration, Diabetic Retinopathy
Comfortable and Stabilizing Chin & Forehead Rest Attachment for Slit Lamp Configurations
In this study, participants will be imaged using two Optical Coherence Tomography (OCT) devices: device N, a standard conventional OCT device with an invention (comfortable chin and forehead rest that can be adjusted to fit each…
- Conditions
- Age-Related Macular Degeneration, Diabetic Retinopathy, Central Serous Chorioretinopathy, Glaucoma
- Trial name
- NCT05686421
- Testing
- OCT Imaging Using Device N, OCT Imaging Using Device C
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- NYU Langone Health
Any Willing and Able Person for Ocular Imaging
Slit Lamp and Digital Camera Attachment
The objective of the study is to compare the ease of use and performance of the SL-D301 with the DC-4 with other existing slit lamps imaging systems (SL-3G) from Topcon.
- Trial name
- NCT02444039
- Testing
- SL-D301, DC-4, SL-3G
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Topcon Medical Systems, Inc.
Aphakia, Acquired
Scleral Fixation of BunnyLens With GoreTex Suture- Initial Results
This study evaluates the Visual Acuity and refraction of patients post 4-point Scleral fixation of BunnyLens (Intra Ocular Lens- IOL) with GoreTex sutures.
- Trial name
- NCT03437434
- Testing
- Visual Acuity
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- DAVID HAUSER
Retinal Diseases, Optic Nerve Diseases
Long-Working Distance OCT for Children
Young children age 6 month to 6 years are often not able to cooperate for advanced OCT eye imaging. The purpose of this study is to investigate the use of a novel long-working distance swept source (SS) optical coherence…
- Trial name
- LWDOCT (NCT02582164)
- Testing
- Duke Biomedical Engineering's Long-working distance OCT
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Duke University
Sleep Apnea Syndrome, Obstructive, Drowsiness
Ocular Parameters in Patients With Sleep Apnea
The aim of this study is to assess the ocular parameters of drowsiness in patients with diagnosed Obstructive Sleep Apnea Syndrome through objective methods of ocular imaging and subjective evaluation methods (questionnaire)
- Conditions
- Sleep Apnea Syndrome, Obstructive, Drowsiness, Blinking, Concentration Ability Impaired
- Trial name
- NCT05911737
- Testing
- Short video and Questionnaire
- Where
- Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Sessile Serrated Adenoma
Use of a Distal Colonoscope Attachment to Increase Detection of Sessile Serrated Adenomas
This study evaluates whether the use of a disposable colonoscope attachment, Endocuff Vision, can increase the detection of sessile serrated adenomas.
- Trial name
- NCT03560037
- Testing
- Endocuff Vision Assisted Colonoscopy
- Where
- United States
- Volunteers
- 427 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Vision Disparity
Are There Different Objective Fixation Disparity Values for Two Different Test Paradigms
In optometry, binocular coordination is measured subjectively. The result is subjective fixation disparity. In research different experiments have proven, that subjective and objective fixation disparity are different.
- Trial name
- NCT02735278
- Testing
- different test paradigms
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Applied Sciences and Arts Northwestern Switzerland
Colorectal Adenoma
Three Arm Rand Trial of HD Light vs Reveal® Cap vs Endocuff Cap for Detection of Colorectal Adenomas (TRACE)
Protocol Title: Three Arm Prospective Randomized controlled trial of High-Definition White-light colonoscopy versus High-Definition White-light colonoscopy with Reveal® Distal Attachment Cap versus High-Definition White-light…
- Trial name
- TRACE (NCT03952611)
- Testing
- Colonoscopy, distal Cap, Endocuff
- Where
- United States
- Volunteers
- 1,203 people, healthy volunteers welcome
- Sponsor
- Midwest Biomedical Research
Retinal Dystrophies, Geographic Atrophy
Real-time Acoustic Biofeedback for Enhancing Fixation Stability: A Proof-of-concept Study to Improve Ophthalmic Imaging Diagnostic Quality
The goal of this Proof of Concept Feasibility Study is to improve the fixation stability in patients with fixation loss due to blindness or central vision loss using a patented acoustic real-time feedback device.
- Conditions
- Retinal Dystrophies, Geographic Atrophy, Blindness
- Trial name
- NCT07529041
- Testing
- A device providing acoustic real-time biofeedback
- Where
- Germany
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University Medical Center Goettingen
Myopia, Esophoria
Bifocal Soft Contact Lenses and Their Effect on Myopia Progression in Children and Adolescents.
The purpose of this study is to determine whether bifocal soft contact lenses are effective in controlling the progression of myopia in children and adolescents that exhibit a tendency to excessively cross their eyes while…
- Conditions
- Myopia, Esophoria, Fixation Disparity
- Trial name
- NCT00214487
- Testing
- Bifocal Contact Lenses
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
Ocular Images
Slit Lamp Model SL-D-301 and DC-4 Digital Camera Attachment
The purpose of the evaluation is to confirm operability and usability of the SL-D301 Slit Lamp and the DC-4 digital camera attachment by conducting a usability evaluation and subsequently submitting a questionnaire and hold an…
- Trial name
- NCT02851147
- Testing
- SL-D301, DC-4, SL-3G
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Topcon Medical Systems, Inc.
Healthy
Brain, Behavior and Endocrine Effects of Transcutaneous Vagus Nerve Stimulation
The main aim of the study is to investigate whether the transcutaneous vagus nerve stimulation(tVNS) promotes oxytocin release and the potential biomarkers of tVNS based on eye-tracking data
- Trial name
- NCT04890457
- Testing
- Vagus nerve stimulation via tragus
- Where
- China
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- University of Electronic Science and Technology of China
Central Vision Loss From Macular Diseases
Training to Modify Fixational Eye Movements for Optimizing Visual Performance in People With Central Vision Loss
People with central vision loss almost all have exaggerated fixational eye movements when compared with people with normal vision (e.g. larger amplitudes of microsaccades and ocular drifts).
- Trial name
- NCT06670989
- Testing
- Fixation training
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Glaucoma Eye, Glaucoma
Comparison of Fixation Suture Type in Glaucoma Surgery
The aim of the study is to compare the effectiveness and safety of two types of intraoperative eye fixation: for the superior rectus muscle and traction suture in the peripheral cornea.
- Trial name
- NCT03797846
- Testing
- combined glaucoma surgery
- Where
- Poland
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok