Investigated the effects of high-frequency multi-band harmonic electromagnetic stimulation on ophthalmic and central retinal artery circulation.
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
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
43
National Central University
Hsinchu, Taiwan, Taiwan
Peak Systolic Velocity (PSV)
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).
Time frame: At the first visit and after 90 minutes usage of device.
End Diastolic Velocity (EDV)
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).
Time frame: At the first visit and after 90 minutes usage of device.
Central Retinal Artery (CRA)
Central Retinal Artery (CRA) were measured using color Doppler ultrasound of the eye arterial blood flow (EPIQ Elite ultrasound system, PHILIPS).
Time frame: At the first visit and after 90 minutes usage of device.
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