Unfortunately that isn't how optics work (former freelance camera person and VFX professional).
When you look at a thing you will have two mechanisms at work: (1) the imagined view line of both your eyes will cross over at that focal point, (2) your eye muscles and irises will shift the focus of each individual eye to the distance of that convergence point. Meaning the stuff you concentrate on will be in focus and on a screen that is the screen, even if it is transparent.
The target being 99% transparent doesn't magically shift your focus point backwards just because you can see the background. You would still have to look at it.
You can easily try this at home. Take a sharpie, write on the window and try reading the text while focusing on some object on the outside. You will find the closer you are to the writing, the harder it will be to still read without shifting the focus back to the front.
If anything you will find that reading on a non-uniform and potentially moving background will make it harder for your brain to focus on the text, not easier. The fact that they make a claim like this doesn't exactly fill me with confidence in their ethics.
It is healthy to not stare at the same focal plane for hours, but that just means heavy screen workers should make it a habit to occasionally let their gaze wander offscreen and potentially out of the window. The eyes are muscles, give them some movement.
When you look at a thing you will have two mechanisms at work: (1) the imagined view line of both your eyes will cross over at that focal point, (2) your eye muscles and irises will shift the focus of each individual eye to the distance of that convergence point. Meaning the stuff you concentrate on will be in focus and on a screen that is the screen, even if it is transparent.
The target being 99% transparent doesn't magically shift your focus point backwards just because you can see the background. You would still have to look at it.
You can easily try this at home. Take a sharpie, write on the window and try reading the text while focusing on some object on the outside. You will find the closer you are to the writing, the harder it will be to still read without shifting the focus back to the front.
If anything you will find that reading on a non-uniform and potentially moving background will make it harder for your brain to focus on the text, not easier. The fact that they make a claim like this doesn't exactly fill me with confidence in their ethics.
It is healthy to not stare at the same focal plane for hours, but that just means heavy screen workers should make it a habit to occasionally let their gaze wander offscreen and potentially out of the window. The eyes are muscles, give them some movement.