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

asia.nikkei.com

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

#241

Post by bagacrap »

mattjaynes wrote: post #136

Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…

I remember reading a post on here about someone's home office lighting setup which had some insane number of lumens and was equivalent to being outdoors at dusk. That's when I became aware of the huge difference in illumination.

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

#242

Post by lukewrites »

bagacrap wrote: post #241
mattjaynes wrote: post #136

Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…

I remember reading a post on here about someone's home office lighting setup which had some insane number of lumens and was equivalent to being outdoors at dusk. That's when I became aware of the huge difference in illumination.

Any chance you saved/upvoted that post? I can’t find it but would love to read it.

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

#243

Post by kazinator »

alliao wrote: post #236
kazinator wrote: post #233

Off on a complete tangent here, only remotely related. Yo, fellow four-eyed geeks. I noticed that when lying down and looking up in a room with a light source, with my glasses on, if there is a small droplet of water on the lens (say, due to having just cleaned the glasses and not wicked up every last drop), this droplet can bend the light in such a way that when it subsequently hits the cornea and pupa, a perfectly…

ok I've always wanted to map it out and keep track of them, I swear they come and go, so going to try this out later! If you can shed more details that'd be awesome! Does the droplet have to be dead centre??

The droplet doesn't have to be dead centre. Basically you stare past the droplet and see the glint of light in it as a big blurry orb of light. That's the "spotlight", basically.. That's it. If you squint your eyes, and see relatively sharp shadows of your eyelashes impinging on the orb, it's working.

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

#244

Post by stevebmark »

ChuckMcM wrote: post #198
stevebmark wrote: post #151

Earlier quoted context omitted.

That's only correlation, light brightness has nothing to do with myopia. It's more likely from looking at things farther away from the face outside so that there is less light focused on the fovea.

kind of, kind of not. To the extent that brightness contracts your pupil, and the depth of field available to your eye increases with smaller pupil size[1]. People with focus issues find they can always focus when the light is bright enough (assuming normally functioning pupils). So there are optical properties that are affected by bright light, and your eyes respond to that. What the mechanism is for affecting overa…

Please do research on myopia progression. It's not unknown. This entire thread is full of people guessing at things they don't have any experience in.

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

#245

Post by fy20 »

dangjc wrote: post #163
whoisburbansky wrote: post #2

It looks like the article doesn't have any details on how this works, anybody care to speculate on a potential mechanism here?

This is similar to the “active focus” method: https://endmyopia.org/ I’ve been in this Facebook group for a while and lots of people have great personal anecdata about their improvements. It’s really interesting to see a medical device come out and if they have clinical trials to back it up.

I've fixed my myopia from -4.25 to -3.25 over the last 5 years (I'm 32). The secret method optometrists don't want you to know, is that I've been staring at a screen just as much and just the same as I've always done.

My point is for some people it can fix itself naturally, so unless studies are double blind, anecdotal claims should be taken with a grain of salt.

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

#246

Post by [deleted] »

pilsetnieks wrote: post #176
phonebucket wrote: post #140

Earlier quoted context omitted.

I'm short-sighted. I'm more worried about blurry traffic than blurry food.

-2 is not that blurry. You may not be able to reliably read a license plate at distance but you'll still see the (mildly blurry) car coming at you.

[deleted]

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

#247

Post by Auracle »

mastazi wrote: post #160
mattjaynes wrote: post #136

Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…

People who have the hobby of photography, might have some intuitive understanding of this brightness difference. If you are shooting with fixed aperture and ISO, your exposure times could easily go from 1/60 indoors to 1/3000 outdoors which is not quite a 100X difference, but close.

It's my job and I still get surprised in the evening at how much the exposure changes when it seems static to my eyes.

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

#248

Post by philipswood »

JacobSuperslav wrote: post #182
dangjc wrote: post #163

Earlier quoted context omitted.

This is similar to the “active focus” method: https://endmyopia.org/ I’ve been in this Facebook group for a while and lots of people have great personal anecdata about their improvements. It’s really interesting to see a medical device come out and if they have clinical trials to back it up.

this method is absolute snake oil. Google around. Most myopia is axial in nature - in layman terms - your eyeball is just too long. No amount of exercises or staring into the sun is going to reduce its length.

So, they eye works pretty much like a camera - but it's not a camera: it's a complex dynamic self-assembling, self-tuning adaptive structure.

The fact that it's geometry is roughly static around a focal length that has sharp focus on the retina is a wonder of homeostasis with at least three known tuning loops:

1) the lens Moving on swiftly...

2) a slower feedback loop adjusting the choriod (hence focal length) in the order of hours.

3) an even slower loop adjusting the eye geometry over longer periods of time.

check out: https://www.sciencedirect.com/science/article/pii/S089662730...

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

#249

Post by thick »

Maybe some of you will find this beneficial if you have slight vision issues. It’s anecdotal, I don’t have scientific backing here. It worked for me, and I think it’s harmless to try. What I’m about to describe is what I think is the Active Focus method.

I’ve always had perfect vision but my dominant eye degraded slightly over the years so I looked into how to bring it back to full. No one in family wears glasses or anything like that, although the elderly use reading glasses of course.

Practicing reading on both monitor and in front of a book with the good eye palmed and trying to shift the focus back and forth while gunning for more clarity for a longer period of time, it took me very little to get rid of the issue - I must have practiced probably 30 times of a few minutes each over the span of a few months, so maybe once every 2nd or 3rd day as I felt like it. I went from having a hard time reading the numbers and letters to very carefully observing the edges of fonts rendered by ClearType antialiasing on Windows.

At first the eye muscles got strained from me forcing it to focus, but then it got better. Minor soreness and redness at first is nothing to be concerned about IMHO. I still practice but not as often, since I’ve trained the ability to focus at will which is really what active focus is about from my understanding - intentional focusing with enough speed.

I’m not a big fan of EndMyopia but the subreddit has people claiming they fixed far worse problems than I have (if slight blurryness is even worthy being called a problem).

I highly recommend Todd Becker’s presentation on Active Focus for anyone wanting a breakdown of the approach. Some people seem to have a hard time with being able to finely control where their focal plane is. It gets easier with practice is about all I can say.

The full “method” that Todd Becker and EM recommend is to try to keep distance to whatever that you’re reading so that it’s just slightly out of focus, but I haven’t had that severe of a myopia. From time to time I read sites like HN from slightly further away than usual just to provide a bit of a challenge to the focus practice, but I think long term it probably isn’t healthy to try to read HN at normal font size from across the room.

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

#250

Post by philipswood »

nelsonmandela wrote: post #193
JacobSuperslav wrote: post #182

Earlier quoted context omitted.

this method is absolute snake oil. Google around. Most myopia is axial in nature - in layman terms - your eyeball is just too long. No amount of exercises or staring into the sun is going to reduce its length.

Vision guides the growth of the eye: if spectacle lenses cause images to fall either behind or in front of the retina (hyperopia or myopia, respectively), eye growth compensates for the optical effects of the lenses https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom...

snap.

dame paper, different links.

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