Clinical trials: Visual Acuity, open to volunteers
Vestibular Hypofunction
Making INformed Decisions in Gaze and Postural Stability: A Pilot Feasibility Study
The proposed research is relevant to vestibular science and the general public because age-related vestibular hypofunction is a major contributor to poor balance, falls, and other adverse health outcomes.
- Trial name
- MINDGAPS (NCT05391932)
- Testing
- MINDGAPS
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- University of Montana
Presbyopia Correction, Presbyopia
Clinical Evaluation of Visual Performance, Spectacle Independence, and Patient Satisfaction With TECNIS PureSee Mini-Monovision and TECNIS PureSee-TECNIS Odyssey Mix-Match
The purpose of the study is to evaluate the binocular clinical endpoints of distance, intermediate, and near vision and patient reported outcomes utilizing mini-monovision versus mix-match approaches for the correction of…
- Conditions
- Presbyopia Correction, Presbyopia, Dysphotopsia, Visual Acuity
- Trial name
- NCT07860567
- Testing
- TECNIS PureSee IOL (Model DEN00V/DET150), TECNIS Odyssey IOL (Model DRN00V/DRT150)
- Where
- United States
- Volunteers
- 68 people
- Sponsor
- Dr. Daniel H. Chang, MD
Vision; Disorder, Loss
The Influence of Prone Position for Spinal Surgery on Visual Acuity
This study investigated the effect of desflurane and propofol anesthesia on visual acuity in patients in prone position for spinal surgery.
- Trial name
- NCT03644641
- Testing
- Desflurane Group, Propofol Group
- Where
- Czechia
- Volunteers
- 60 people
- Sponsor
- University Hospital Hradec Kralove
Myopia, Visual Rehabilitation
Exploring Perceptual Learning in Blurred Gabor Discrimination for Low-Myopic Children
This exploratory study investigates whether perceptual learning using blurred Gabor stimuli can improve uncorrected distance visual acuity in children aged 6-10 years with low myopia.
- Conditions
- Myopia, Visual Rehabilitation, Perceptual Learning
- Trial name
- NCT07107646
- Testing
- vision training system, VTS
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- National Taiwan University Hospital
Astigmatism, Myopia
Evaluation of Mesopic Visual Acuity and Patient Satisfaction Following Ray-Tracing-Guided LASIK
To provide comprehensive evaluation of WaveLight® Plus technology by assessing impact on both functional low-light vision and patient reported outcomes
- Trial name
- NCT07790185
- Testing
- Wavelight Plus
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Vance Thompson Vision
Visual Outcome
The Purpose of This Clinical Study is to Evaluate Optimized Maximum Plus for Maximum Visual Acuity (MPMVA) Refractive Technique and Its Effect on Visual Performance.
This is a prospective, multicenter, parallel groups, non-interventional, examiner masked, comparative clinical study. Patients that participated in previous Hoya studies, and patients previous implanted with Hoya non-toric…
- Trial name
- NCT07595432
- Testing
- Non-Interventional Study
- Where
- Philippines
- Volunteers
- 140 people
- Sponsor
- Hoya Surgical Optics, Inc.
Diabetic Macular Edema
Home- vs Hospital-based Care of Anti-VEGF Treatment for Diabetic Macular Edema: Non-inferiority RCT
Diabetic macular edema (DME) is a common cause of central visual loss in diabetic patients and a global public health burden around the world.
- Trial name
- DME HOME (NCT06610747)
- Testing
- Home-based Care Monitoring, Aflibercept 2Mg/0.05Ml Inj,Oph, Laser Treatment
- Where
- 4 sites in China
- Volunteers
- 308 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Dysphotopsia, Posterior Capsule Opacification
Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants
The goal of this clinical investigation is to evaluate visual acuity and contrast sensitivity in low lighting conditions using several different testing devices, and measure nighttime side effects of intraocular lens (IOL)…
- Conditions
- Dysphotopsia, Posterior Capsule Opacification, Visual Acuity, Visual Function
- Trial name
- NCT07213167
- Where
- United States
- Volunteers
- 120 people
- Sponsor
- Dr. Daniel H. Chang, MD
Retinal Detachment
REtinal Detachment Outcomes Study
Background: Few large randomized controlled trials provide strong evidence to guide surgical repair of primary rhegmatogenous retinal detachment (RRD) repair.
- Trial name
- REDOS (NCT05863312)
- Testing
- Pars plana vitrectomy, Pars plana vitrectomy with scleral buckle, Sulfur hexafluoride gas tamponade
- Where
- Canada
- Volunteers
- 560 people
- Sponsor
- CHU de Quebec-Universite Laval
Stroke
Reliability of Community Ambulation Ability, Fall Risk, and Dynamic Visual Acuity Assessments in Stroke
Nearly half of individuals with stroke experience limitations in community ambulation, and 35.7% of community-dwelling stroke survivors experienced falls while walking, indicating that falls are common during routine daily…
- Trial name
- NCT07494487
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- National Yang Ming Chiao Tung University
Optic Neuritis
Privosegtor Investigation in Optic Neuropathies Efficacy Evaluation Research
The goal of this clinical trial is to evaluate the safety and efficacy of privosegtor, a neuroprotective candidate, in patients diagnosed with optic neuritis (ON).
- Trial name
- PIONEER-1 (NCT07623668)
- Testing
- Privosegtor, Methylprednisolone
- Where
- 4 sites in United States
- Volunteers
- 210 people
- Sponsor
- Oculis
Amblyopia, Amblyopia Unilateral
Valproate for the Treatment of Residual Amblyopia
The goal of this clinical trial is to determine the efficacy of valproate as an adjunct therapy to treat amblyopia beyond the critical period in children aged 8-17 years who have amblyopia of ≥3 lines of interocular…
- Conditions
- Amblyopia, Amblyopia Unilateral, Amblyopia, Anisometropic, Amblyopia Strabismic
- Trial name
- VARA (NCT07226141)
- Testing
- Valproate, Patch
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- Boston Children's Hospital
Retinal Dystrophies, Color Vision Defects
Natural History Study of Inherited Retinal Diseases
This prospective, observational investigation seeks to delineate the interplay between chromatic vision deficits and both functional visual outcomes and anatomical retinal biomarkers in individuals affected by Inherited Retinal…
- Conditions
- Retinal Dystrophies, Color Vision Defects, Vision Disorders, Macular Degeneration
- Trial name
- MojiLVCDT (NCT07085533)
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Zhongmou Therapeutics
Diabetic Retinopathy
Assessment of Retinal Microvascular Changes by OCT Angiography in Diabetic Retinopathy
This observational cross-sectional study aims to assess retinal microvascular changes using optical coherence tomography angiography (OCTA) in patients with diabetic retinopathy.
- Trial name
- NCT07747428
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Sohag University
Alcohol Use Disorder, Retinal Dystrophies
The Effects of Disulfiram (Antabuse®) on Visual Acuity in Patients With Retinal Degeneration
Oral disulfiram (Antabuse®) has been shown to improve image-forming vision in animal models with retinal degeneration due to its ability to decrease Retinoic Acid synthesis and consequently reduce hyperactivity in the inner…
- Conditions
- Alcohol Use Disorder, Retinal Dystrophies, Age-Related Macular Degeneration, Retinitis Pigmentosa
- Trial name
- NCT06319872
- Testing
- Oral disulfiram
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- University of Rochester
Primary Open Angle Glaucoma, Pseudoexfoliation Glaucoma
XEN Glaucoma Gel Stent Versus Trabeculectomy
Multicentric evaluation of best corrected visual acuity of the XEN implant versus classic trabeculectomy in open angle glaucoma subjects
- Conditions
- Primary Open Angle Glaucoma, Pseudoexfoliation Glaucoma, Pigmentary Dispersion Glaucoma
- Trial name
- NCT05439161
- Testing
- surgery
- Where
- Austria
- Volunteers
- 196 people
- Sponsor
- Prof. Dr. Herbert Reitsamer
Bullous Pseudophakic Keratopathy, Penetrating Keratoplasty
Effectiveness of PKP vs DSAEK in Terms of 2-year Postoperative Visual Acuity in Advanced BPK
This is an open-label multicenter randomised controlled clinical trial with 2 parallel arms with a 1:1 ratio. Patients meeting the eligibility criteria will be offered to participate in the study during an ophthalmology…
- Trial name
- DESPEK (NCT06818747)
- Testing
- Best corrected monocular visual acuity
- Where
- 11 sites in France
- Volunteers
- 334 people
- Sponsor
- Centre Hospitalier Régional Metz-Thionville
Visual Acuity, Refractive Errors
Assessing the Turkish DDIVAT for Visual Acuity Measurement
The goal of this observational methodological study is to validate the Turkish version of the DDIVAT visual acuity measuring device in a Turkish-speaking adult population.
- Conditions
- Visual Acuity, Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT07240480
- Testing
- DDIVAT Visual Acuity Test (Turkish Version)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Trakya University
Macular Degeneration
Learning Study: Improving Vision in Adults With Macular Degeneration
The purpose of this study is to test whether a kind of brain stimulation called anodal transcranial direct current stimulation (a-tDCS) can be combined with perceptual learning to improve the ability of people with age-related…
- Trial name
- NCT04762368
- Testing
- Active anodal tDCS
- Where
- 2 sites in Canada, Hong Kong
- Volunteers
- 30 people
- Sponsor
- University of Waterloo
Multiple Sclerosis, Tomography, Optical Coherence
Retinal Atrophy and Neurofilament Light Chain in People With Multiple Sclerosis Taking Ofatumumab
This study aims to assess whether, and the degree to which, ofatumumab modulates or reduces rates of retinal atrophy in people with relapsing-remitting MS (RMS), according to baseline serum neurofilament light chain (sNfL) levels.
- Conditions
- Multiple Sclerosis, Tomography, Optical Coherence, Retinal Degeneration, Visual Acuity
- Trial name
- NCT06167642
- Testing
- Ofatumumab
- Where
- United States
- Volunteers
- 75 people
- Sponsor
- Johns Hopkins University