Clinical trials: Accommodation
Refractive Errors, Accommodation Disorder
Choroidal Thickness Change in Response to Physiological and Refractive Changes
There is a great need for precise and repeatable measurements of the choroidal thickness. Including the diurnal physiological changes, accommodation and refractive error impact on those measurements.
- Trial name
- NCT03906279
- Where
- Poland
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Wrocław University of Science and Technology
Spasm of Accommodation
Ultrasound Biomicroscopy Study Of Accommodative State In Smartphone Abusers
Detection if there is association between spasm of accommodation and smart phone abuse by ultrasound biomicroscopy on anterior segment of the eye
- Trial name
- NCT03389009
- Testing
- Ultrasound Biomicroscopy of anterior segment of the eye
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Randa Farouk Kashif
Accommodation
Investigational Study of Accommodation Triggering and Control to Allow for the Performance of Refraction Measurements
An investigational study in the control of the user's accommodative state via visual stimuli.
- Trial name
- NCT03957408
- Testing
- Visual Stimuli
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.
Myopia, Accommodation
Dynamic Change in Accommodation After Wearing Multifocal Soft Contact Lenses for Myopia Control
The purpose of this study is to report the changes in accommodation, aberrations, and myopia in patients wearing multifocal soft contact lens for various durations. The study objectives are to: 1.
- Trial name
- NCT04763694
- Testing
- Multifocal soft contact lenses
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Amblyopia Bilateral, Hyperopia of Both Eyes
Hyperopia Detection GCK With Glow Fixation
"GoCheck Kids" has added to its iPhone 7+ smart phone with flash concentrator a non-accommodating glow box fixation target. In pediatric eye patients, the "GCK" with glow box is compared to cycloplegic refraction as well as…
- Conditions
- Amblyopia Bilateral, Hyperopia of Both Eyes, Astigmatism Bilateral, Accommodation Disorder
- Trial name
- NCT04297969
- Testing
- objective pediatric vision screen "GCK glow fixation"
- Where
- United States
- Volunteers
- 133 people
- Sponsor
- Alaska Blind Child Discovery
Myopia, Accommodation Spasm
Effect of VR and Accommdation Relax on Controlling Myopia in Children
This study evaluates the effect of virtual reality and accommodation relax technique on controlling onset and development of myopia in school-aged children.
- Conditions
- Myopia, Accommodation Spasm, Children
- Trial name
- NCT03427697
- Testing
- Virtual reality and accommodation relax techniques in combination
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- Beijing Tongren Hospital
Visual Acuity at Near, Accuracy of Accommodation
The Effect of Bifocals in Children With Down Syndrome
Visual acuity at near improves in children with Down syndrome using bifocals
- Conditions
- Visual Acuity at Near, Accuracy of Accommodation, Prevention of Strabismus, Task Readiness
- Trial name
- NCT02241356
- Testing
- bifocals, single vision glasses
- Where
- Netherlands
- Volunteers
- 120 people
- Sponsor
- Radboud University Medical Center
Supported Accommodation Residents, Schizophrenia, Shizotypal and Delusional Disorders
Quantitative Investigation of Environment and Participation
Supported accommodation provides individuals with complex mental health difficulties the opportunity to maintain a tenancy with different levels of staff support provided to develop and maintain living skills and engage in social…
- Conditions
- Supported Accommodation Residents, Schizophrenia, Shizotypal and Delusional Disorders, Mood Affective Disorders, Disorders of Adult Personality and Behavior
- Trial name
- QIEP (NCT04106960)
- Testing
- No Intevention Used
- Where
- United Kingdom
- Volunteers
- 235 people
- Sponsor
- Queen Margaret University
Asthenopia, Contact Lenses
Connecting Contact Lenses and Digital Technology
This study seeks to address whether or not different types of daily disposable soft contact lenses may be a beneficial option for patients complaining of eye strain and visual discomfort while using digital devices.
- Conditions
- Asthenopia, Contact Lenses, Ocular Accommodation, Convergence, Excess
- Trial name
- NCT02921087
- Testing
- Test Daily Disposable Soft Contact Lenses, Control Daily Disposable Soft Contact Lenses
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Accommodation
Objective Verification of Physiologic Changes During Accommodation Under Binocular, Monocular, and Pinhole Conditions
The investigators believe that this simple, clear, and objective study may be a great help in understanding the accommodative response during various accommodative stimulation conditions.
- Trial name
- NCT03557346
- Testing
- the WAM-5500 binocular autorefractor/keratometer (Grand Seiko Co. Ltd., Hiroshima, Japan)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Dark Focus of Accommodation
Night Myopia and Dark Focus of Accommodation
Shifts in accommodation at decreasing luminance levels are considered as principle cause for night myopia. Previous studies with laser optometers quantified the dark focus of accommodation up to 3 D.
- Trial name
- NCT03358550
- Testing
- Accommodation Measurement
- Where
- Germany
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- University of Applied Sciences Jena
Accommodative Insufficiency, Ill-sustained Accommodation
Accommodation Disorders
This project will develop clinically useful, objective measurements of accommodative insufficiency and fatigue using continuous autorefraction recordings.
- Trial name
- AD (NCT01329848)
- Where
- United States
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Western University of Health Sciences
Vertigo, Headache
Study of Oculomotor Dysfunction Leading to Children Vertigo
The eye movements of vergence allow binocular vision whatever the viewing distance or the body movements are and the perception of depth. Vergence dysfunction can lead to erroneous visual sensation of movements.
- Conditions
- Vertigo, Headache, Anomaly of Vergence System, Accommodation Disorders
- Trial name
- VERVE (NCT01153789)
- Testing
- orthoptic rehabilitation, Orthoptic diagnostic
- Where
- France
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Ocular Accommodation
Reading Fluency and Accommodative Lag
The purpose of this study is to determine whether special reading glasses improve children's ability to learn to read.
- Trial name
- NCT00383175
- Testing
- Autorefractor, standard clinical instrument
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Functional Dyspepsia, Gastric Emptying
Effect Of Itopride On Gastric Emptying And Accommodation In Patients With Functional Dyspepsia
Pathogenesis of functional dyspepsia is poorly understood. Gastrointestinal motor abnormalities, Helicobacter pylori infection, impaired gastric accommodation to a meal, hypersensitivity of the afferent nerves of the gut…
- Conditions
- Functional Dyspepsia, Gastric Emptying, Gastric Accommodation
- Trial name
- EIGEAPFD (NCT01226134)
- Testing
- Itopride,
- Where
- Pakistan
- Volunteers
- 30 people
- Sponsor
- Aga Khan University
Ocular Accommodation
Improvement of Accommodation With Anti-Oxidant Supplementation in Visual Display Terminal Users
The purpose of this study is to determine the antioxidant supplementation effect on accommodation among visual display terminal (VDT) users.
- Trial name
- NCT00877201
- Testing
- CDR2
- Where
- Japan
- Volunteers
- healthy volunteers welcome
- Sponsor
- Ryogoku Eye Clinic