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When you are told “my child’s myopia is progressing,” the options most often named areorthokeratologyandMiSight® 1 day. Both are used to slow myopia progression, but they differ completely in how they work, in their effect on daily life, and in cost. We have summarized them based on our clinic’s information.
Special hard contact lenses are worn only at night and removed in the morning. They reshape the cornea during sleep, so you can go through the day without glasses.
Daily disposable soft contact lenses worn in the morning and removed at night. They are designed both to correct myopia and to slow its progression.
| Item | Orthokeratology | MiSight® |
|---|---|---|
| When worn | Only during sleep (about 8 hours) | While awake (daytime only) |
| Lens type | Hard lenses (reusable) | Soft lenses (daily disposable) |
| Vision during the day | You can go about your day without glasses | You wear the lenses throughout the day |
| Water, baths, naps | No problem, since the lenses are out during the day | Always remove for swimming, baths, and napsRemoval required |
| Eligible myopia range | Generally suitable: up to about −4.00 D Beyond that, we decide case by case based on corneal shape and other factors | Range studied for progression control: −0.75 to −4.00 D (spherical equivalent) Lens power manufacturing range: up to −10.00 D |
| Astigmatism | Corneal astigmatism of −1.50 D or more can be handled with custom lenses (BOC-TD) Depending on corneal shape and the type of astigmatism, it may not be suitable → Our article: Orthokeratology for astigmatism | Astigmatism up to −0.75 D can be handled Larger astigmatism may affect how things look → Our article: MiSight® and astigmatism |
| Approval for myopia progression control | Not approved in Japan Approved only for myopia correction. Studies show a progression-slowing effect, but there is no approved indication for it in Japan. | Approved for myopia progression control Approved in 2025 as Japan’s first soft contact lens for myopia progression control. |
| Myopia control effect (study values) | Studies report slowing of axial length growth by about 30–60% (meta-analysis) | Over 3 years, progression of myopic refraction was slowed by 59% and axial length growth by 52% (axial elongation 0.30 mm vs. 0.62 mm in controls; MiSight® clinical trial) |
| If a lens is lost | ¥33,000 / lens. Until it is replaced, there is no means of daytime vision correction | Because the lenses are daily disposables, losing one lets you continue from the next day’s pair |
| First contact lenses | Hard lenses may take time to get used to | Soft lenses often feel more comfortable |
→ Our article: The “dangers” of sleeping in contact lenses
| Year | Ortho-K | Program A | Program B |
|---|---|---|---|
| Year 1Including initial cost | ¥165,000Trial ¥55,000 + main treatment ¥110,000 |
¥292,760Initial ¥55,000 (includes 1 month) + annual management fee ¥17,600 + lenses and medication ¥220,160 |
¥235,800Initial ¥55,000 (includes 1 month) + annual management fee ¥17,600 + lenses ¥163,200 |
| Year 2Regular year | ¥23,100 | ¥237,760Annual management fee ¥17,600 + lenses and medication | ¥180,800Annual management fee ¥17,600 + lenses |
| Year 3With lens replacement | ¥89,100Management ¥23,100 + replacement ¥66,000 |
¥237,760 | ¥180,800 |
| Year 4 onwardRegular year | ¥23,100 / year | ¥237,760 / year | ¥180,800 / year |
| 3-year total | ¥277,200 | ¥768,280 | ¥597,400 |
When orthokeratology is a good fit
Children who play a lot of sports or are outdoors during the day and want to go without glasses as much as possible. It can also be used when astigmatism is present (details at the exam). However, myopia beyond −4.00 D is not eligible.
When MiSight® is a good fit
Children using contact lenses for the first time, or families who are worried about managing lenses during sleep. It can also be used for myopia beyond −4.00 D, and is an option for those who want a myopia progression control treatment approved in Japan.
With either treatment,your child’s own wish to “want to try it”is very important. If parents’ wishes run too far ahead, it can be hard to keep going.
* Children with myopia associated with premature birth (such as retinopathy of prematurity) or with pathologic myopia may not be eligible for these treatments. Please confirm at your exam.
* Costs and program details may change. Please contact us for the latest information.
* Costs differ if only one eye is treated. Please ask our staff for details.
* The information on this page is as of September 2026.
