Clinical trials: Near Vision
Chronic Kidney Disease
Mechanisms of Muscle Blood Flow Dysregulation and Exercise Intolerance in Chronic Kidney Disease
Patients with chronic kidney disease (CKD) experience fatigue and exercise intolerance. Increased oxidative stress in CKD may be a contributing factor.
- Trial name
- NCT02664519
- Testing
- Forearm exercise training
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Myopia
Safety and Effectiveness of Wavefront-Guided LASIK Corrections of Myopic Refractive Errors
The purpose of this clinical trial is to demonstrate that wavefront-guided LASIK is safe and effective for the correction of myopic refractive errors.
- Trial name
- NCT01663363
- Testing
- LASIK correction of myopic refractive errors
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Myopia
The Effects of Low-dose Atropine and Orthokeratology in Pediatric Myopia Control
Both orthokeratology and atropine eye drops are effective methods for myopia control, but few studies have compared them all together simultaneously.
- Trial name
- AVO (NCT05478356)
- Testing
- low-dose atropine eye drops, orthokeratology
- Where
- 2 sites in China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Evidence Based Cataract Study Group
Presbyopia
Safety and Effectiveness Study of the AcuFocus Corneal Inlay ACI 7000PDT in Presbyopes
The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method for the correction of presbyopia in patients who have normal distance vision but need a correction such as…
- Trial name
- ACI (NCT00819299)
- Testing
- AcuFocus Corneal Inlay ACI 7000PDT
- Where
- 15 sites in United States
- Volunteers
- 359 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Myopia
MiSight 1 Day Safety Post-Approval Study
The purpose of this post-approval study is to confirm the safety of daily disposable soft contact lens wear among the intended patient population for the MiSight 1 Day lens in the US.
- Trial name
- NCT05285527
- Testing
- MiSight 1 Day
- Where
- 50 sites in United States, Canada
- Volunteers
- 2,400 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Electronic Spectacles Versus Low Dose Atropine in Young Myopes
This is a bilateral, dispensing, masked, randomized clinical trial. Myopic children will be randomly assigned to one of the following: (1) Investigational clinical prototype (CP1) device without atropine, (2) Investigational CP1…
- Trial name
- NCT06034379
- Testing
- eSpectacle Clinical prototype (CP1) device, 0.01% atropine
- Where
- Taiwan
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Cerebral Oxygenation
Cerebral Tissue Oxygenation Values in Newborns Measured Using Laser and LED NIRS Oximeters
The aim of the study is to compare the values of cerebral tissue oxygenation measured simultaneously using laser light (FORE-SIGHT) and LED (INVOS) cerebral oximeters.
- Trial name
- NCT01496027
- Where
- Poland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Poznan University of Medical Sciences
Hyperopia, Myopia
A Phase 1/2 Crossover Study to Assess EXP039 for Myopia or Hyperopia
Assess the Safety, Pharmacodynamics, and Efficacy of EXP039 Ophthalmic Solution in Participants with Myopia or Hyperopia
- Trial name
- NCT04883996
- Testing
- 1% EXP039, Saline control
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Canyon City Eyecare
Patients With Myopic Spherical Equivalent up to -12 Diopters
Q Value Customized Versus Wavefront Optimized Ablation in Femtosecond Laser-Assisted LASIK
Corneal asphericity is expressed numerically as the "Q-value". A minus value means that corneal curvature flattens towards the periphery and the cornea is prolate in shape, but when the curvature steepens towards the periphery…
- Trial name
- NCT04738903
- Testing
- Femtosecond laser assisted LASIK eye surgery
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Assiut University
Myopia
Aberration-Free Refraction Correction
In the interest of improving visual quality after LASIK we have designed a multifaceted study to test the theoretical, physical, biomechanical and functional effects of commercial and independently designed aspherical ablation…
- Trial name
- NCT00172913
- Where
- Taiwan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Myopia
Impact of Positive & Negative Lens-Induced Defocus on Contrast-Sensitivity in Myopic & Non-Myopic Adults
examines the influence of lens-induced defocus on contrast sensitivity-a crucial aspect of visual performance.Each participant experiences both positive and negative defocus through different lenses, with measurements taken for…
- Trial name
- NCT06753032
- Testing
- Positive Lens-Induced Defocus Using Spectacle Lenses (+2.00 D) for Myopic Participants, Negative Lens-Induced Defocus Using Spectacle Lenses (-2.00 D) for Myopic Participants, Positive Lens-Induced Defocus Using Spectacle Lenses (+2.00 D) for Non-Myopic Participants
- Where
- Pakistan
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Superior University
ACL Injury, Hemodynamics
A Paradigm Shift in Musculoskeletal Rehabilitation Assessment After ACL Reconstruction Using Near-Infrared Spectroscopy
This study aims to establish and compare muscle haemodynamic response patterns in physically active subjects with anterior cruciate ligament (ACL) reconstruction, at different time points after surgery, against healthy controls…
- Conditions
- ACL Injury, Hemodynamics, Oxygen Consumption Based Assessment of Hemodynamics, Exercise
- Trial name
- HemoNIRS-LCA (NCT06621355)
- Testing
- Incremental Interval Test on a Cycle Ergometer
- Where
- Spain
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Universitat de Lleida
Myopia
SEED-LVPEI Myopia Study
This randomized clinical trial study aims to investigate the efficacy of novel SEED's EDOF based mid-lens design in controlling the myopia progression in Indian children with these specific objectives: 1.
- Trial name
- SLIMS (NCT04618510)
- Testing
- SEED 1-dayPure EDOF soft contact lens, Single Vision Spectacles
- Where
- India
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- L.V. Prasad Eye Institute
Myopia
Polarization Sensitive Optical Coherence Tomography
The purpose of the study is to use the polarization sensitive optical coherence tomography (PS-OCT) developed by Singapore Eye Research Institute, to evaluate the potential OCT scleral biomarkers capable of predicting risk of…
- Trial name
- NCT05809674
- Testing
- Polarization sensitive optical coherence tomography (PS-OCT)
- Where
- Singapore
- Volunteers
- 178 people, healthy volunteers welcome
- Sponsor
- Singapore Eye Research Institute
Anesthesia, General, Infant
Impact of CO2 on Cerebral Blood Flow in Infants Less Than 6 Months During General Anaesthesia
The study aims at assessing cerebral blood flow variations following expired CO2 variations in anaesthetized infants less than 6 months, during a routine general anesthesia.
- Trial name
- NCT03567031
- Testing
- EtCO2 modification
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- St. Justine's Hospital
Compartment Syndrome of Leg
Early Diagnosis of Compartment Syndrome by Multimodal Detection Technique
compartment syndrome has a high incidence in patients with a variety of diseases, including fractures, and delayed diagnosis or without intervention can lead to severe adverse prognosis, such as limb deformities, amputations and…
- Trial name
- MMCS (NCT04442672)
- Testing
- acute compartment syndrome model of health volunteer
- Where
- China
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Myopia
Effects on Ocular Parameters of Myopic Eyes After Orthokeratology in Myopic Children
Effects on Ocular Parameters of Myopic Eyes After Orthokeratology in Myopic Children
- Trial name
- NCT03516357
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Near Infrared Spectroscopy
Comparison of Normal Readings and Repeatability Across Skin Colors
Observational comparison study of three commercially available regional oxygen saturation devices on a wide range of skin colors.
- Trial name
- NCT01326819
- Where
- United States
- Volunteers
- 231 people, healthy volunteers welcome
- Sponsor
- Nonin Medical, Inc
Presbyopia, Pseudophakia
Pilocarpine and Brimonidine in Patients With Monofocal Lenses
The current study aims to assess the use of pilocarpine and brimonidine to improve near visual acuity in patietns with monofocal intraocular lenses.
- Trial name
- NCT03825081
- Testing
- Brimonidine, pilocarpine
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Dental Caries (Diagnosis), Diagnostic Imaging
Diagnostic Performance and Children's Acceptance of Near-Infrared Light Transillumination and Bitewing Radiographs for Detecting Proximal Cavitation in Primary Molars of Patients Aged 4 to 10 Years
The goal of this observational study is to compare the diagnostic performance of three detection methods for approximal carious lesions in primary molars among pediatric patients aged 4-10 years.
- Conditions
- Dental Caries (Diagnosis), Diagnostic Imaging, Optical Imaging, Radiographic Image Interpretation, Computer-Assisted
- Trial name
- NILT (NCT07041164)
- Testing
- Bitewing radiograph, Near-infrared light transillumination
- Where
- 2 sites in Thailand
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Sawanya Prutthithaworn