Myopia treatment 'smart glasses' from Japan to be sold in Asia

However, in both of those studies, participants wore their under-corrective glasses continually, regardless of whether they were doing near-work or just walking / looking at a distance. This is a crucial error, as pointed out by at least Hung and Ciuffreda: https://www.oepf.org/sites/default/files/journals/jbo-volume...>. It makes intuitive sense to me that under-corrective or anti-corrective glasses should only be worn for a limited amount of time each time and only when doing near-work, in order to induce temporary pressure that the (feedback systems of the) eye can then attempt to correct.

Also see this 2009 review by Barrett regarding the more general practice of behavioral vision therapy: https://doi.org/10.1111/j.1475-1313.2008.00607.x>. Behavioural vision therapy is a wider term, referring not only to the effort to slow myopia, but also to correct other vision problems through changes in behaviour.

I started at the beginning of quarantine, and it's actually been a wonderful time to try this since I rarely /need/ to look at anything farther away than my laptop screen. I started at a -2.25 diopter prescription in each eye. So for about $120 I got every pair of glasses down to 0.25 diopters, and a Snellen chart to track progress. Today, I'm down to a -1.25 prescription, although I plan on seeing an optometrist to confirm this once it's safe in the world to do so again.

The things I noticed during this experiment:

> It takes about a month minimum to drop down a prescription (I measure it as once I can reliably read to the 20/30 line on the Snellen chart).

> Given the above, I wear `current prescription + 0.5 diopters` whenever driving to make sure I'm well above the legal limits for driving (which is 20/40 vision)

> Going outside and just looking at stuff that's far away has the biggest positive effect on improving vision.

> Given 30 seconds of actively focusing, I can see temporary gains to my vision for the next 30 minutes or so

> My vision is waaay better in the morning

> I can now work on my laptop without needing glasses (still difficult to watch tv, though)

> Given the focus on what is and isn't blurry, I've started noticing the insane effect the brightness of a room has on how blurry things are

> I'm terrible at tracking data, given that I only have about 10 entries in my very basic excel sheet

> This has made me go on walks more often, which is just a net good all around. It feels "productive" to go for a walk rather than boring.

> It's very possible that this has only a limited return it can provide, since I've been plateaued at -1.25 for the last 3 months.

Edit: The person I asked said they wore their glasses some of the time but also spent some of the time without (when they were climbing in the rigging etc.)

Goodness Wikipedia, this isn't the theory at all. It has nothing to do with muscle strain. We know for a fact that in youth, the eyeball grows longer when it's overfocusing (especially in fovea), and stops growing when things are blurry. That's how it maintain focus as you grow and age. This isn't a theory, it's how the eye works. There are already multiple types of technology that successfully slow and stop myopia based on this principle, as listed in my post.

The mechanism of outdoor light is just a hypothesis without known direct link. It may be related but there's no direct evidence for it yet.