Live data from Hacker News

Show HN: Refractify – Optical software against myopia

refractify.io

1–10 of 59 posts

Show HN: Refractify – Optical software against myopia

#1
Last summer there was an Ask HN[1] about a Nature article that said bluring the blue and green color channels on screen may be good against early myopia development. The OP wanted such software and there was none available.

So I quit my job and implemented this software, did a short video with a 3D artist about it.

Turns out marketing is expensive, so I made an open source browser extension version too.

How it works?

There is a small neural network on the retina that tries to detect if the eye is far-sighted(most people are born far-sighted), and it is producing dopamine to slow or increase eye growth rate. It is not very smart, and if you do a lot of near-work it can think you are still hyperopic, causing further myopia progression.

So, based on the refractive properties of the eye the software calculates the signal that would convince the retinal neural network that the eye is long enough, so it would produce dopamine, a known signal to stop axial eye growth. (based on myopic defocus LCA from the papers[2][3])

Some myopia control techniques work similarly, like MiSight and Hoya lenses.

Since then I got a Neurobiologist co-founder and the goal is to best understand the Retinal NN to create the best anti-myopic effect that does not interfere with productivity.

The effect can be tried live on the site. Also check out the github repo. Any questions suggestions welcome!

[1] https://news.ycombinator.com/item?id=37019143 [2] https://www.nature.com/articles/s41598-022-26323-7 [3] https://www.sciencedirect.com/science/article/abs/pii/S00144...

Show HN: Refractify – Optical software against myopia
refractify.io

Re: Show HN: Refractify – Optical software against myopia

#5

This might be one of the coolest projects I’ve seen recently, are you planning on doing this for smartphones too? Also I wonder how Apple would respond there, just block it like they did Flux?

Thank you for the kind words. Smart phones are in progress, yes. Apple will possibly not like it as it alters the look, but we will try and see.

Re: Show HN: Refractify – Optical software against myopia

#6
post #3

Interesting. Is the physical screen ideal or are software solutions expected to have similar efficacy? I wonder if it's possible to make an android app that does this globally. What's your business model?

Most optical properties of myopic defocus can be simulated on screen. Since the processing is on the retina, screen altering can be effective. Android app is in progress.

Re: Show HN: Refractify – Optical software against myopia

#8
post #7

> This makes the screen look on the retina naturally as if it was at a greater distance. You can also do this the low tech way by using dirt cheap plus lens glasses. With the added benefit that they make a tiny phone screen look as huge as a cinema screen.

If you induce myopic defocus by plus lenses you create an urge to move the screen closer, which removes the effect. We need to achieve the right defocus on the retina. Wheres with the software solution you can not "cheat" by moving closer.

Re: Show HN: Refractify – Optical software against myopia

#9
post #3

Interesting. Is the physical screen ideal or are software solutions expected to have similar efficacy? I wonder if it's possible to make an android app that does this globally. What's your business model?

Most optical properties of myopic defocus can be simulated on screen. Since the processing is on the retina, screen altering can be effective. Android app is in progress.

Looking forward to it, thanks! I signed up for your email list.

Re: Show HN: Refractify – Optical software against myopia

#10

This might be one of the coolest projects I’ve seen recently, are you planning on doing this for smartphones too? Also I wonder how Apple would respond there, just block it like they did Flux?

Thank you for the kind words. Smart phones are in progress, yes. Apple will possibly not like it as it alters the look, but we will try and see.

Pitch it as an Accessibility improvement.

As someone who is -12.5 diopters in my good eye, I’m excited by the prospect of improvement.

Post reply on HN