[leobg]

> 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.

[macilacilove]

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.

[leobg]

That’s true. Tends to shift the problem towards having horrible posture.