Effects of HFMH-EMS on Ocular Artery Circulation

March 2, 2025 updated by: Chung Shan Medical University

The Effects of High-Frequency Multiband Harmonic Electromagnetic Stimulation (HFMH-EMS) on Ocular Artery Circulation After Prolonged Smartphone Usage

Investigated the effects of high-frequency multi-band harmonic electromagnetic stimulation on ophthalmic and central retinal artery circulation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This study investigated the effects of prolonged smartphone usage for over 90 minutes on ophthalmic and central retinal artery circulation before and after smartphone use and compared the effects with versus without intervention by high-frequency multi-band harmonic electromagnetic stimulation.

Study Type

Interventional

Enrollment (Actual)

43

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Hsinchu, Taiwan, 30013
        • National Central University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • 20 to 65 years old

Exclusion Criteria:

  • hypertension
  • diabetes
  • heart disease
  • eye-related diseases

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: experimental group
high-frequency multi-band harmonic electromagnetic stimulation device group
Device: BOBY
high-frequency multi-band harmonic electromagnetic stimulation device
Placebo Comparator: control group
placebo device group
Other: Control
placebo group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Peak Systolic Velocity (PSV)
Time Frame: At the first visit and after 90 minutes usage of device.
peak systolic velocity (PSV) of the ophthalmic artery (OA) were measured using color Doppler ultrasound of the eye arterial blood flow (EPIQ Elite ultrasound system, PHILIPS).
At the first visit and after 90 minutes usage of device.
End Diastolic Velocity (EDV)
Time Frame: At the first visit and after 90 minutes usage of device.
end diastolic velocity (EDV) of the ophthalmic artery (OA) were measured using color Doppler ultrasound of the eye arterial blood flow (EPIQ Elite ultrasound system, PHILIPS).
At the first visit and after 90 minutes usage of device.
Central Retinal Artery (CRA)
Time Frame: At the first visit and after 90 minutes usage of device.
Central Retinal Artery (CRA) were measured using color Doppler ultrasound of the eye arterial blood flow (EPIQ Elite ultrasound system, PHILIPS).
At the first visit and after 90 minutes usage of device.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Chung Shan Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 20, 2023

Primary Completion (Actual)

September 20, 2023

Study Completion (Actual)

December 31, 2023

Study Registration Dates

First Submitted

February 18, 2025

First Submitted That Met QC Criteria

March 2, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 2, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 202304EM005

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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