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For better vision, decreased eyestrain and prevention of eye diseases. Approved by Japan's Ministry of Health.

F-sonic - Ultrasonic Vision Treatment Machine [AC Adapter Included]

$1,283.70 (¥ 138,240)*

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*Actual price may vary according to exchange rates.
Payment will be charged in yen

Product Information

Do you:
  • feel that your eyesight recently weakened?
  • feel that your eyes are tired from daily activites?
  • battle shoulder aches or migranes?
  • want to improve your vision and lose the glasses? 

Then F-sonic may solve your problem!


F-sonic (Futawa Sonic) is an ultrasonic therapeutic machine approved by Japan's Ministry of Health.

How does it work?

F-Sonic deeply micromassages your eyes with ultrasonic ultrasound, especially working on the ciliary muscle--the muscle responsible for enabling the eye to focus on various distances.

Removing the stiffness of your eyes leads to increased blood flow in your eyes, promoting healthy cell function.

F-sonic works from the very basic level-- the cells of your eyeballs, to remove eye strain and improve your vision.

Maintaining healthy cells is essential to preventing eye diseases.
If used refularly, F-sonic may help prevent or delay certain eye diseases.

Muscle tension in your eyes can also cause shoulder pain and migranes.
Many users of f-sonic have found that they experience less migraines once they started using f-sonic.

Some have found that they sleep better and wake up feeling more refreshed, presumably because F-sonic removes eye strain and eases tension.

How is F-sonic used?

Using F-sonic is very easy.

Turn on your F-sonic, close one eye, and hold it up to your closed eye.
F-sonic should be gently touching your eyelid. 

Click to see example of how F-sonic is used

Let F-sonic massage your eyes for 10 minutes.
That's it for the day!

On next day, place F-sonic on your other eye for 10 minutes.

Keep this 10-minute routine everyday, switching between eyes.

F-sonic will beep after 5 minutes to notify you are halfway done.
It will stop automatically after 10 minutes.

Please note that after using F-sonic, your vision will be blurry for about 15 minutes.

Does F-sonic really work?

F-sonic micromassages your eyes, increasing blood flow and promoting healthy cell functions in your eyeballs.

Almost all users experience decreased eye strain.

But how about vision restoration?

More than half of F-sonic users experience improved eyesight.

That also means that for some people, F-sonic does not significantly improve their eyesight.

F-sonic is more likely to work for you if you are:
  • nearsighted (myopia).
  • spend long hours on your computer or smartphone, or reading books.
  • a child or teen, especially if you study for long hours everyday.
  • you had good eyesight previously, but your eyesight has weakened in recent years.
F-sonic might not work for you if you are:
  • farsighted (hyperopia).
  • extremely nearsighted (excessive myopia).
  • having poor eyesight due to hereditary causes.

In short, F-sonic helps to refresh your eyes and restore nearsightedness due to environmental causes.

Is F-sonic safe?

Since the introduction of F-sonic, there have been over 400,000 F-sonic machines sold to customers in Japan and overseas.

  ophthalmologists recommend F-sonic to their patients, and  to this date, there have been no reported side effects to using F-sonic.

At e-Nagata, we carry the latest model of F-sonic.
Besides body color, the difference between the new gray model and the old white model is that the new gray model is manufactured in Japan.

F-sonic is manufucatured and sold in Japan as a "highly controlled medical device", meaning it must be sold by licensed vendors.

We are licensed from the prefecture of Nagasaki to handle highly controlled medical devices.
We are an optician's shop in Japan with two stores in Nagasaki.
You can shop with confidence.

AC adapter is included

AC adapter included

Can also be used with batteries(4 AA batteries, not included)
Can also be used with batteries (not included)

Comes in a box
Comes in a box


F-sonic - Approved by Japan Ministry of Health, Labor and Welfare

Medical equipment approval number

Common name
  Ultrasonic Medical Equipment

Sales name
  Futawa Sonic (F-sonic)

Electrical input
  DC6V 100mA±10%

Noise output

Ultrasonic frequency
  Approximately 6 to 12kHz

  Approximately 385g (including batteries)

  205mm x 123mm x 52mm

Approved function
  "Suppression and mitigation of transient myopia"

  1 year warranty by manufacturer


Included in Your Order
  • The latest model of F-sonic
  • AC adapter
  • Box especially made for F-sonic
  • Cloth pouch for F-sonic
  • Eye test chart
  • Eye exercise routine sheet

We ship within 5 business days from payment confirmation.


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Shipping Options


JP Post EMS Your order will be shipped to you via Japan Post EMS. Japan Post is a speedy delivery service that delivers to more than 120 countries. With an effective tracking system and insurance program, EMS is able to offer a secure delivery worldwide. You can track your package with the tracking code provided and it will be delivered within a week. 

Payment Methods

Available Payment Methods

  • Credit Card


Credit Card

Credit Card We accept credit and debit cards.
The following credit and debit cards can be used:
•American Express

Return Policy

We only exchange goods if they are defective or damaged. In circumstances where you consider that a product is defective, please contact us within 1 week with details of the product and the defect.

Expendable items are non-refundable and non-exchangeable.

Refunds do not include any shipping and handling charges shown on the packaging slip or invoice. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to hardware during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.

This product cannot be shipped directly to Us United States from the store.

Please use a package forwarding service >> Learn more


Delivery Rates : EMS (International Express Mail Service)

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