Clinical trials: Near Vision
Adolescent, Adult
Prospective Clinical Study of Retinal Microvascular Alteration After ICL Implantation
To observe the retinal microvascular alteration during 3 months follow-up after Implantable Collamer Lens (ICL) operation in moderate and high myopia patients using quantitative optical coherence tomography angiography (OCTA)…
- Conditions
- Adolescent, Adult, Human, Male
- Trial name
- NCT04443231
- Testing
- Optical Coherence Tomography Angiography
- Where
- China
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Myopia, Myopia, Progressive
Kubota Glass Parameter Refinement Study
Length of the eye will be measured in subjects exposed to various stimulus characteristics using an electronic spectacle which presents illuminated targets to the eye.
- Conditions
- Myopia, Myopia, Progressive, Vision Disorders
- Trial name
- NCT06085430
- Testing
- Kubota Glass
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Myopia
Stellest Lenses and Low-concentration Atropine Myopia Control Among Children
The prevalence of myopia is increasing globally, especially in Asian countries. 70-80% of the young population suffers from myopia, and almost 20% have high myopia.
- Trial name
- NCT06344429
- Testing
- Stellest Lenses, Stellest Lenses+0.05% atropine, Single vision Lenses+0.05% atropine
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Essilor-Polylite Taiwan Co., Ltd.
Myopia, Astigmatism
An Outcomes Study Comparing the Intralase FS 60 to the Intralase iFS When Performing LASIK Surgery for Nearsightedness
The purpose of the study is to compare the results of LASIK surgery when using two versions of a femtosecond laser in patients with nearsightedness with and without astigmatism.
- Trial name
- NCT01365728
- Testing
- LASIK with the iFS femtosecond laser
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Stanford University
Breast Carcinoma, Kidney Carcinoma
Functional Near-Infrared Spectroscopy and Virtual Reality Relaxation Programs for Pain Management in Patients With Cancer
This study aims to develop objective tools for assessing perceived pain severity in cancer patients and survivors, evaluate the sustained effectiveness of non-pharmacological interventions such as virtual reality in reducing pain…
- Conditions
- Breast Carcinoma, Kidney Carcinoma, Carcinoma
- Trial name
- NCT06456411
- Testing
- Functional Near-Infrared Spectroscopy, Questionnaire Administration, Virtual Technology Intervention
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Roswell Park Cancer Institute
Myopia-Night Blindness
Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality
Reduced quality of vision and glare in twilight or night are frequently mentioned complaints within the optometric examination. A reason for these problems could be a myopic refractive shift in dark light conditions, commonly…
- Trial name
- NCT02965534
- Testing
- Spectacle/Glasses
- Where
- 3 sites in Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Applied Sciences Jena
Myopia, Hyperopia
Complete Easy Rub Comparative Efficacy Study
The aim of this trial is to assess Complete Easy Rub compared to a competitor multi-purpose solution in terms of lens cleanliness, subjective response and ocular response, when lenses are worn bilaterally on a daily wear basis…
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT01019564
- Testing
- Complete Easy Rub Formula MPS, Aquify MPS
- Volunteers
- healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Infant Formula
Growth, Allergy and Neurodevelopment in Infants on Hydrolysed Formula
Breastfeeding is the recommended diet for all infants during the first half of infancy and is associated with numerous health benefits.
- Trial name
- GRANDIOSA (NCT05578716)
- Testing
- Partially hydrolysed formula
- Where
- 2 sites in Sweden
- Volunteers
- 312 people, healthy volunteers welcome
- Sponsor
- Umeå University
Myopia, Hyperopia
Time Course Comparison of Contact Lens Maintenance Systems for Hydrogel Lenses
The principal aim of this project is to determine the time course of development of contact lens and contact lens case contamination during daily wear of silicone hydrogel lenses.
- Trial name
- NCT00732004
- Testing
- Silicone Hydrogel Contact Lenses, 1x PMBH preserved MPS, 1x Polyquad/Aldox MPS
- Where
- Australia
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- University of Melbourne
Post-endoscopic Mucosal Resection of Colon Polyps
Assessing a Endoscopic Mucosal Resection Site Using Different Endoscopic Imaging Methods
The purpose of this study is to compare the accuracy of using different endoscopic imaging technique (white light, white light with near focus, narrow band imaging (NBI), NBI with near focus) for detection of residual neoplastic…
- Trial name
- NCT02668198
- Testing
- Olympus CF190 Colonoscope High definition white light, Olympus CF190 Colonoscope White light with near focus, Olympus CF190 Colonoscope Narrow band imaging
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- Michael Wallace
Myopia, Myopia Progression, Lag of Accommodation, Hyperopic Retinal Blur, Reduction in Contrast
Lag of Accommodation With DOT Spectacle Lenses
The objective of the study is to measure the difference in the lag of accommodation between DOT spectacle lenses and control spectacles.
- Trial name
- ASH (NCT04700111)
- Testing
- DOT Pattern, Control Spectacles
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Healthy, Myopia
Ocular Imaging With Spectral Domain Optical Coherence Tomography
The purpose of this study is to analyze macular retinal thickness and macular volume using the spectral domain - optical coherence tomography (SD-OCT) in normal eyes and in eyes with various ocular diseases.
- Conditions
- Healthy, Myopia, Hypermetropia
- Trial name
- NCT00926549
- Testing
- Spectral domain-OCT (Cirrus™ HD-OCT, Carl Zeiss Meditec AG)
- Where
- South Korea
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Ametropia, Myopia; Refractive Error
The Objective of This Study is to Evaluate the Perfomance of a Photorefraction Device for Screening Ametropia in Children. Eligible Participants Will Undergo Multiple Refractive Error Measurements, Visual Acuity and Strabismus Assessments During a Single Evaluation Visit.
The goal of this clinical trial is to evaluate the performance of a photorefraction screener in terms of sensibility, sensitivity and accuracy on children aged 3 to 8 y.o.
- Conditions
- Ametropia, Myopia; Refractive Error, Myopia; Astigmatism
- Trial name
- NCT06882408
- Testing
- Photorefraction device under investigation, Comparator device, Tabletop auto-refractometer, Comparator device, portable photorefraction device
- Where
- 2 sites in France
- Volunteers
- 315 people, healthy volunteers welcome
- Sponsor
- Essilor International
Sleep
Predict Near Future Initiation of Bed Exit
Presence/absence in bed along with heartbeat, respiration, and gross motion in bed will be measured in 48 Budd Terrace residents, a long-term care facility of Emory Healthcare.
- Trial name
- BEDEXIT (NCT01774708)
- Testing
- Pressure sensitive pad
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Atlanta VA Medical Center
Myopia
Pilot Study to Assess the Efficacy of Short Exposure to Defocus to Slow the Progression of Myopia in Children
The objective of this pilot study is to establish whether brief periods of high levels of acutely imposed myopic defocus can be used to slow the progression of myopia in children, as measured by changes in spherical equivalent…
- Trial name
- NCT00400140
- Testing
- Hyperopic lens
- Where
- Singapore
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia
Performance and Safety of Silicone Hydrogel Soft Contact Lenses
To demonstrate substantial equivalence of the new Silicone Hydrogel Soft Contact Lenses(SHSCL) to the commercially available ACUVUE® VITA™ contact lens
- Trial name
- NCT04226560
- Testing
- 41% Silicone Hydrogel Soft Contact Lenses(SHSCL), ACUVUE® VITA™ (senofilcon C) Brand (Soft) Contact Lens, Contact Lens Care Product
- Where
- Taiwan
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- ApexLens Co., Ltd.
Microcirculatory Status, Spectroscopic Analysis
Near-Infrared Spectroscopy Measurements in Chronic Obstructive Pulmonary Disease
Participants were selected based on three groups: healthy, chronic obstructive pulmonary disease, and chronic renal disease. NIRS was used to measure tissue oxygenation on the thenar region of the right hand.
- Conditions
- Microcirculatory Status, Spectroscopic Analysis, COPD, Renal Failure
- Trial name
- NIRS (NCT06976762)
- Where
- Turkey (Türkiye)
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Myopia
Cambridge Anti-Myopia Trial: Accommodation Training and Aberration Control in Myopia Development
We have identified focussing problems related to myopia getting worse. Our trial uses optical and orthoptic interventions that correct the focussing problems to see if this retards myopia progression.
- Trial name
- NCT00317551
- Testing
- Aberration controlled contact lens, Vision training
- Where
- United Kingdom
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Cerebral Desaturation, Cerebral Ischemia
Assessment of Cerebral Blood Flow Asymmetry in Cardiac Surgery Patients Undergoing Hypothermic Circulatory Arrest
Cerebral oxygen desaturation during cardiac surgery measured using near infrared spectroscopy (NIRS) derived cerebral oximetry has been associated with significant postoperative morbidity.
- Trial name
- COASTLINE (NCT03215589)
- Where
- Canada
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Conjunctivitis, Glaucoma
Feasibility Study and Preliminary Application Study on Iris OCTA
All participants will underwent imaging using the OCTA system (Zeiss) with the anterior segment optical adaptor lens. The main outcomes are iris blood flow density and vascular density.
- Conditions
- Conjunctivitis, Glaucoma, Myopia, Diabetic Retinopathy
- Trial name
- NCT03631108
- Testing
- OCTA (ZEISS)
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center