Clinical trials: Visual Performance
Astigmatism
Evaluation of Orientation and Visual Acuity of Four Toric Soft Contact Lenses When Head is Tilted at 90 Degrees
The purpose of this study is to determine the relative performance of a new toric soft contact lens against three toric contact lens currently available in market, specifically with orientation and visual acuity when head is…
- Trial name
- NCT00583908
- Testing
- senofilcon A, balafilcon A toric, lotrafilcon B toric
- Where
- United Kingdom
- Volunteers
- 14 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Intervertebral Disc Degeneration
Safety and Performance of the SPINEVISION Hexanium ACIF in the Treatment of Cervical Spine Degenerative Disc Disease
The goal of this observational study is to confirm the safety and efficacy of the Hexanium ACIF system in the treatment of skeletally mature patients suffering from degenerative disc disease (disease that occurs when the spinal…
- Trial name
- NCT06155409
- Testing
- Anterior cervical interbody fusion
- Where
- 6 sites in France
- Volunteers
- 148 people
- Sponsor
- SPINEVISION SAS
Functionality of Experimental Contact Lens
Ocular Adaptation and Visual Performance for Accommodative Contact Lens
Presbyopes (people who might have a significant loss of their ability to accommodate their crystalline lens in the eye) will be recruited to wear a test lens and perform typical clinical tests of visual acuity with different…
- Trial name
- ACL (NCT02923232)
- Testing
- Accommodative contact lens
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Pacific University
Loss of Visual Contrast Sensitivity, Near Vision
Visual Performance Following Implantation of Presbyopia Correcting IOLs
The purpose of the current study was to compare the visual performance after bilateral implantation of the Panoptix IOL , or the AT LISA IOL or Tecnis Symfony IOL .
- Conditions
- Loss of Visual Contrast Sensitivity, Near Vision, Visual Impairment
- Trial name
- NCT04907955
- Testing
- phacoemulsification with implantation of presbyopia correcting IOL
- Where
- Kuwait
- Volunteers
- 50 people
- Sponsor
- Dar Al Shifa Hospital
Visual Acuity
Clinical Performance Evaluation of Two Silicone Hydrogel Lenses
This is a randomized, double-masked dispensing study where subjects will randomized into one of two lens sequences to wear each of two contact lens types for a 4-week period with each lens type.
- Trial name
- NCT02756078
- Testing
- TEST Contact Lens, CONTROL Contact Lens
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Cognitive Performance, Balance
RHBS Brain and Balance Study of Older Adults
Brief Summary: Cognition and balance are known to decline during the aging process. Cognitive performance is essential for functional independence and determines whether an individual can perform instrumental daily living…
- Trial name
- NCT04796870
- Testing
- Online Brain and Balance Training Program
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- George Mason University
Athletic Performance Enhancement, Neuromuscular Performance in Athletes
Acute Effects of Neuroathletic Training-Integrated Resistance Training in Collegiate Athletes
This study investigated the acute and short-term effects of neuroathletic training (NAT)-integrated resistance training compared with conventional resistance training on physical and neuromuscular performance in collegiate…
- Conditions
- Athletic Performance Enhancement, Neuromuscular Performance in Athletes, Physical Performance
- Trial name
- NAT-RT (NCT07782606)
- Testing
- Conventional Lower-Extremity Resistance Training, Neuroathletic Training-Integrated Resistance Training
- Where
- Turkey (Türkiye)
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Ankara Yildirim Beyazıt University
Refractive Assessment
ACRYSOF® Restor Apodized Diffractive IOL Postmarket Evaluation of Clinical Outcomes and Life-Style Visual Performance RESTOR IOL SN60WF IOL (Control Group)
The objective of the research on the Restore Intra Ocular Lens Implant (IOL) is to determine the clinical visual outcomes following bilateral implantation of the IOL compared to a control IOL and to demonstrate what percentage of…
- Trial name
- NCT00345111
- Testing
- Clinical visual outcomes of bilateral implantation of Restore Intra Ocular Lens.
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Normal Healthy Eyes
Visual Performance With Spatial Light Modulator
Eye's aberrations have been known to degrade human visual performance and the visual performance is significantly improved when correcting the aberrations in the central visual field.
- Trial name
- NCT05134896
- Testing
- Spatial light modulator
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Houston
Presbyopia
DAILIES® AquaComfort Plus® Multifocal (MF) - Comparative Assessment of Visual Performance
The purpose of this study is to evaluate the visual performance of DACP MF and PROCLEAR 1D MF daily disposable contact lenses in an established presbyopic population.
- Trial name
- NCT02403180
- Testing
- DACP MF, PROCLEAR 1D MF
- Volunteers
- 70 people
- Sponsor
- Alcon Research
Cognitive Change, Processing, Visual Spatial
Effects of a Complex, Partnered Martial Arts-based Intervention on Cognitive Function
The investigators' study is designed to test whether brief exposure to a martial arts-based intervention (a coordinative, partnered training exercise known as "Hubod"), can improve cognitive function to a greater degree than…
- Conditions
- Cognitive Change, Processing, Visual Spatial, Inhibition (Psychology), Working Memory
- Trial name
- HUBOD (NCT04760054)
- Testing
- HUBOD, Active Comparator, Control Condition
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Illinois at Urbana-Champaign
Cataract, Lens Opacities
Visual Performance, Patient Satisfaction and PCO Rate After Implantation of a Trifocal Hydrophobic IOL
Prospective, controlled, single-surgeon, single-center post-market clinical follow up study to investigate the clinical outcomes of a hydrophobic trifocal IOL (PhysIOL POD F GF)
- Conditions
- Cataract, Lens Opacities, Presbyopia
- Trial name
- PHY1703 (NCT03306342)
- Testing
- IOL implantation experimental
- Where
- France
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
High Fidelity Simulation Training, Randomized Controlled Trials
Effect of Visual Deprivation of the Team Leader on Team Performance During Simulated Medical Emergencies
This multicenter randomized controlled study aims to evaluate the impact of temporary visual deprivation of the medical team leader on non-technical skills and team performance during high-fidelity simulated medical emergencies.
- Conditions
- High Fidelity Simulation Training, Randomized Controlled Trials, Education, Medical, Continuing, Education, Medical
- Trial name
- LEAD ME (NCT07427641)
- Testing
- Visual deprivation
- Where
- France
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Rennes University Hospital
Catartact
Clinical Trial to Evaluate the Visual Performance of Two Monofocal Intraocular Lenses
The main objective of the clinical study is to evaluate the performance of the CT LUCIA 601 PY for the monocular uncorrected distance visual acuity and compare it to the reference monofocal IOL Acrysof IQ SN60WF.
- Trial name
- LUCIOL (NCT02903927)
- Testing
- Implantation of CT LUCIA IOL, Implantation of Acrysof IQ SN60WF IOL
- Volunteers
- 81 people
- Sponsor
- Carl Zeiss Meditec AG
Visual Performance
Evaluating the Impact of JJVC Senofilcon A - Based Contact Lens With New UV-blocker on Day and Night Driving Performance
This is a bilateral, non-dispensing, randomized, subject masked, four visits, 3-period by 3- treatment crossover study. The objective of this study is to evaluate the effect of JJVC senofilcon A - based contact lens with new…
- Trial name
- NCT03330275
- Testing
- Investigational Contact Lens, Commercial ACUVUE OASYS, Commercial ACUVUE OASYS and Spectacles
- Where
- Australia
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Bladder Tumor
Assessment of the Uro-C Cystoscope for Use in Diagnostic Cystoscopy Procedures
This is a prospective, multicenter, single-arm, open-label clinical usability study in subjects who are candidates for office diagnostic cystoscopy.
- Trial name
- NCT03331705
- Testing
- Uro-C (Use of new cystoscope)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- UroSee Corporation
Stroke
The Combining rTMS With Visual Feedback Training for Patients With Stroke
After stroke, patients often experience motor deficits that interrupt normal lower extremity movement and gait function. Recent developments in neuroimaging have focus on the reasons why some patients recover well while some do…
- Trial name
- rTMS (NCT03689491)
- Testing
- rTMS, visual feedback training, traditional rehabilitation
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- Taipei Medical University Hospital
Cataract, Aphakia - Lens Capsule Present
Visual Adaptation and Quality of Life After Different IOL Implantation Strategies
This longitudinal observational study aims to evaluate long-term visual adaptation trajectories, optical quality, and patient-reported outcomes in age-related cataract patients following bilateral implantation of multifocal or…
- Trial name
- MMAQ-IOL (NCT07740590)
- Testing
- Bilateral Bifocal IOL Implantation, Bifocal and EDOF IOL Mix-and-Match Implantation, Bifocal and Monofocal IOL Mix-and-Match Implantation
- Where
- China
- Volunteers
- 264 people
- Sponsor
- Sichuan Academy of Medical Sciences
Visual Impairment
Artificial Intelligence (AI) - Assisted Visual Impairment Screening Model: Community-based Implementation and Evaluation of Performance, Feasibility and Costs.
The goal of this observational study is to evaluate the performance, operational efficiency, acceptability, feasibility, and cost-effectiveness of an AI-assisted screening model for visual impairment in a community setting.
- Trial name
- NCT06877988
- Testing
- AI
- Where
- Singapore
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Singapore Eye Research Institute
Parkinson Disease, Breathing Exercises
Effect of Visual Feedback From the SpiroGym Mobile Application
The previous pilot study showed that two weeks of intensive expiratory muscle strength training (EMST) with SpiroGym was sufficient to significantly improve voluntary peak cough flow (PCF).
- Conditions
- Parkinson Disease, Breathing Exercises, Telemedicine
- Trial name
- EXPARK (NCT06942533)
- Testing
- EMST with SpiroGym app, EMST without SpiroGym app
- Where
- 2 sites in Czechia
- Volunteers
- 30 people
- Sponsor
- General University Hospital, Prague