Clinical trials: Fixation, Ocular
Choroidal Neovascularization, Visual Field, Visual Acuity
OCT and Microperimetry in Patients With Active Neovascular ARMD (CORFI)
ARMD is the main cause of visual disability after 50 years old in France. Patients with active neovascular ARMD are treated with intravitreal injections of antiVEGF.
- Trial name
- CORFI (NCT03435926)
- Where
- France
- Sponsor
- University Hospital, Limoges
Amblyopia
OCT Eccentric Fixation and Amblyopia in Children
The objectives of this proposal are to characterize the relationship between OCT eccentric fixation (OCT-EF), fixation eye movement (FEM), macular sensitivity in children with amblyopia.
- Trial name
- NCT05714449
- Testing
- eye patch, After-image and MIT trainer
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- State University of New York College of Optometry
Fuchs' Endothelial Dystrophy
Assessment of Corneal Graft Attachment in Patients With Fuchs Endothelial Corneal Dystrophy Following DMEK Using Ultra-high Resolution OCT
Fuchs endothelial corneal dystrophy (FECD) is a progressive disease characterized by the loss of endothelial cells, thickening of Descemet's membrane and deposition of extracellular matrix in the form of guttae.
- Trial name
- NCT02542644
- Testing
- Ultrahigh resolution Spectral Domain OCT
- Where
- 2 sites in Austria
- Volunteers
- 12 people
- Sponsor
- Medical University of Vienna
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
Traumatic Brain Injury (TBI) Patients
Effect of Fixation Training With Colored Light Targets on Traumatic Brain Injury-Associated Photophobia
Many people develop intolerance to light after a head injury, leading to ambient light levels causing discomfort. We do not fully understand why this occurs and how it should be treated.
- Trial name
- NCT07606300
- Testing
- Fixation training using different colored fixation targets
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Ohio State University
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
Aphakic Eye
Iris Suture Fixation vs Iris Claw for Correction of Aphakia
Evaluate and compare the advantages and disadvantages of iris suture fixation versus iris claw of posterior chamber IOLs
- Trial name
- IOLs (NCT06933654)
- Testing
- IOL implantation surgery for aphkic eye
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Benha University
Hemianopsia, Homonymous, Brain Injury
Biofeedback for Hemianopia Vision Rehabilitation
Patients with brain injury secondary to stroke, surgery, or trauma frequently suffer from homonymous hemianopia, defined as vision loss in one hemifield secondary to retro- chiasmal lesion.
- Conditions
- Hemianopsia, Homonymous, Brain Injury, Stroke, Brain Tumor
- Trial name
- NCT05397873
- Testing
- Biofeedback training
- Where
- Canada
- Volunteers
- 32 people
- Sponsor
- University Health Network, Toronto
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
Macular Hole, Macular Hole Surgery
Minimal Vitrectomy and ILM Flap with Sodium Hyaluronate Gel for MH
The purpose of this clinical trial is to compare the prognostic validity of two different surgical approaches: minimal posterior pole vitrectomy combined with a sodium hyaluronate gel-covered internal limiting membrane(ILM) flap…
- Conditions
- Macular Hole, Macular Hole Surgery, Idiopathic Macular Hole, Macular Hole of Left Eye (Disorder)
- Trial name
- ILM MH (NCT06685328)
- Testing
- minimal posterior pole vitrectomy combined with a sodium hyaluronate gel-covered internal limiting membrane(ILM) flap with balanced saline filling and postoperative supine position, Conventional vitrectomy combined with inner limiting membrane flap flip coverage with sterile air filling and postoperative prone position
- Where
- China
- Volunteers
- 52 people
- Sponsor
- Jie Zhong
Fuchs' Endothelial Dystrophy
Supine Positioning for Graft Attachment After Descemet Membrane Endothelial Keratoplasty
This randomized controlled trial evaluates the efficacy and safety of postoperative supine head positioning on graft attachment after Descemet membrane endothelial keratoplasty in patients with Fuchs' endothelial corneal…
- Trial name
- SUPER-DMEK (NCT05399095)
- Testing
- Supine positioning: 5 days, Supine positioning: 1 days
- Where
- Germany
- Volunteers
- 90 people
- Sponsor
- University Eye Hospital, Freiburg
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
Absence of Capsule Support, Aphakia
Clinical Observation of the Transscleral Suture Fixation of Posterior Chamber Intraocular Lens in Eyes With Inadequate Capsule Support
To present the follow-up outcomes of transscleral suture fixation of posterior chamber intraocular lens (PCIOL) in eyes with inadequate capsule support.
- Trial name
- NCT03817151
- Testing
- posterior chamber intraocular lens implantation
- Where
- China
- Volunteers
- 21 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
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.
Aphakia
Comparison of Safety and Efficacy of Four-Point Scleral Intraocular Lens Fixation and Yamane Techniques
Comparison of safety and efficacy of two scleral fixation intraocular lens (IOL) methods of four-point scleral fixation ( Akreos AO60) and the Yamane technique (AcrySof MA60AC)
- Trial name
- NCT06389643
- Testing
- Four-point scleral fixation of Akreos AO60 IOL, Sutureless scleral fixation of AcrySof MA60AC IOL with Yamane technique
- Where
- Poland
- Volunteers
- 50 people
- Sponsor
- Military Institute od Medicine National Research Institute
Lens Subluxation
Sutureless Technique for Repositioning and Scleral Fixation of the Capsular Bag - Intraocular Lens Complex With Permanent Use of Iris Retractors
Sutureless technique for repositioning and scleral fixation of the capsular bag-intraocular lens complex with permanent use of iris retractors
- Trial name
- NCT07257172
- Testing
- Sutureless technique for repositioning and scleral fixation of the capsular bag - intraocular lens complex with permanent use of iris retractors
- Where
- Poland
- Volunteers
- 40 people
- Sponsor
- Military Institute od Medicine National Research Institute
Aphakia, Mydriasis
Sutureless Intrascleral Intraocular Lens Fixation and Modified Iris Cerclage Pupilloplasty
In this study, patients with various causes of pupillary dilatation were recruited, and medical records and ophthalmology examinations, including slit-lamp examination, visual acuity, best corrected visual acuity, intraocular…
- Trial name
- NCT05829122
- Testing
- Sutureless Intrascleral Intraocular Lens Fixation and Modified Iris Cerclage Pupilloplasty
- Where
- China
- Volunteers
- 20 people
- Sponsor
- Changzhou Second People's Hospital affiliated with Nanjing Medical University
Lens Diseases
Accuracy of Intra Ocular Lens CARLEVALE Calculation
The purpose of this study is to assess the accuracy of intra ocular lens power calculation using the new Carlevale sutureless scleral fixation posterior chamber intra ocular lens.
- Trial name
- NCT05368870
- Testing
- Carlevale implantation
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Poitiers University Hospital