As the target of Refresh Technology EW is not asthenopia but eye strain remission treatment, and asthenopia prevention, the effect on the symptoms of eye strain is explained.
1．Dry Eye
Refer to DED.
2．Dim Eyesight
The main cause of this is strain of the accommodation muscles (internal and external eye muscles), the electricity generated by the current parameters used in Refresh Technology EW has the effect of exercising muscles, improving blood flow, and activating cells, so it releases rigid muscles due to strain and has an effective effect of improving muscle strain.
Refresh Technology EW can give the eye refreshment, which is equal to relaxing, giving the parasympathetic nerve dominance and promoting blood flow above common low frequencies. This leads to the activation of cells throughout the eye, which is a secondary effect on Eye Strain.
3．Pain
The main cause of this is strain of the accommodation muscles (internal and external eye muscles), the electricity generated by the current parameters used in Refresh Technology EW is effective for pain because it depolarizes Aβ fibers that act as inhibitory nerves.
† Current Parameter of Refresh Technology EW
