Effects of HFMH-EMS on Ocular Artery Circulation

Not Applicable

Completed

• Conditions: Ocular Surface Disease; Central Retinal Artery Occlusion

• Registration Number: NCT06861985
• Lead Sponsor: Chung Shan Medical University

Brief Summary

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

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 Timeline

• Study Start: 2023-09-20
• Primary Completion: 2023-09-20
• Study Completion: 2023-12-31
• Study First Submitted: 2025-02-18
• Status Verified: 2025-03
• Study First Submitted QC: 2025-03-02
• Last Update Submitted: 2025-03-02
• Study First Posted: 2025-03-06
• Last Update Posted: 2025-03-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 43

Inclusion Criteria

• 20 to 65 years old

Exclusion Criteria

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Peak Systolic Velocity (PSV)	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).
End Diastolic Velocity (EDV)	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).
Central Retinal Artery (CRA)	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).

Trial Locations

Locations (1)

National Central University; 🇨🇳 Hsinchu, Taiwan