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Objective Verification of Physiologic Changes During Accommodation Under Binocular, Monocular, and Pinhole Conditions

NCT03557346 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 64

Last updated 2018-06-15

No results posted yet for this study

Summary

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.

Conditions

  • Accommodation

Interventions

DEVICE

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.

Sponsors & Collaborators

  • Chung-Ang University Hosptial, Chung-Ang University College of Medicine

    lead OTHER

Eligibility

Min Age
20 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-01-02
Primary Completion
2017-03-31
Completion
2017-03-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03557346 on ClinicalTrials.gov