Objective Verification of Physiologic Changes During Accommodation Under Binocular, Monocular, and Pinhole Conditions
NCT ID: NCT03557346
Last Updated: 2018-06-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
64 participants
OBSERVATIONAL
2017-01-02
2017-03-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Effect of Lens Presentation on the Clinical Oculomotor Assessment at Near
NCT02679313
Dynamic Change in Accommodation After Wearing Multifocal Soft Contact Lenses for Myopia Control
NCT04763694
Investigational Study of Accommodation Triggering and Control to Allow for the Performance of Refraction Measurements
NCT03957408
Effect of Biofeedback Training on Accommodation During Multifocal Lens Wear in Young Adults
NCT05684250
The Changes Under Different Accommodation of Anterior Eye and 3D Crystal Reconstruction.
NCT06704503
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
CASE_CROSSOVER
PROSPECTIVE
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
the WAM-5500 binocular autorefractor/keratometer (Grand Seiko Co. Ltd., Hiroshima, Japan)
: Subjects underwent a basic ophthalmic examination and the accommodative response to refractive stimuli was measured. Refractive stimuli were given at 0.25 diopters (D) (4 m distance), 2D (50 cm), 3D (33 cm), and 4D (25 cm) and stimulation was applied with the eyes in binocular, monocular (dominant eye, non-dominant eye, ipsilateral, and contralateral), and pinhole conditions. In addition, changes in the astigmatic value and direction of the astigmatism axis under binocular stimulus were evaluated.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. spherical equivalent (SE) within ± 4.0 diopters (D)
3. correctable distant and near visual acuity by glasses to 20/20
4. normal ocular alignment.
Exclusion Criteria
2. disorders that can affect accommodation (e.g., history of ocular trauma, previous ocular surgery)
3. disorders that might limit testing accuracy (e.g., corneal pathological features, cataract, glaucoma, vitreous opacity, and retinal abnormalities).
20 Years
40 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Chung-Ang University Hosptial, Chung-Ang University College of Medicine
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Hong Hyun Park
Resident
References
Explore related publications, articles, or registry entries linked to this study.
Park H, Park IK, Shin JH, Chun YS. Objective Verification of Physiologic Changes during Accommodation under Binocular, Monocular, and Pinhole Conditions. J Korean Med Sci. 2019 Jan 21;34(4):e32. doi: 10.3346/jkms.2019.34.e32. eCollection 2019 Jan 28.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
CAUHOphthalmology
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.