That makes total sense And that is actually reported a lot by people: Being able to “read that line”, but not really sharp, still slighty blur. That is NORMAL. This will usually not prevent you from improving.
Jake wrote an article way back then on “Snellen clarity”, which I still find super helpful as my orientation: 20/50: The Brilliant & Super Simple Rule For Improving Eyesight - Endmyopia® - Improve Eyesight Naturally
So for me personally 20 / 50 is a baseline to gain solid improvments. And 20 50 doesn’t even need to be super sharp. Actual fun fact: If you can read 20 50 crystal clear, without the slightest blur, it would be very likely that you can read up to the 20 20 line too.
Hopefully this can give you a bit chills, that if you can read 20 30 somewhat unperfect, your normalized is definitely good enough.
The other important aspect is lighting:
If you can read 20 30 in bad, dim lighting in your flat, that prob translates easily to 20 / 20 vision outdoors with good lighting. So that would explain, why you experience just a blur challenge in the “very far distance”.
I see. That could definitely be an aspect that makes improvement a bit harder. And honestly here I prob can not add much value in this situation, because I luckily have enough flexibility for a lot of outdoor time.
At least in your job you prob do not stare at a screen for hours (at least I hope? :)). I know, bureaucracy in that job typically increases and increases…
However: According to Jake, 10 Minutes of Active Focus outdoors per day should actually be enough to improve. But we need additionally time for reducing eyestrain, which also happens a lot quicker outdoors. That is why Jake recommends in total at least 1 hour of outdoor time after 3 hours of indoor time, so first to release the ciliary muscle from strain and afterwards doing ActiveFocus for at least 10 minutes.
But you say, you do not get ANY (?) ActiveFocus experience.
How is it for you with your differentials in CloseUp? Finding ActiveFocus in CloseUp first is typically way easier than finding it in the distance. Because outdoors the vision conditions are way more fluctuating, depending on casted, partly casted, sunny, dry eyes, stress level…
So do you have also some quite regular times of CloseUp / desk work in your job?
If so: Maybe using that to get AF with differentials might be a good starting point for improvement!
Another troubleshoot area is the Ciliary muscle:
Jake mentions often that with a ciliary spasm you cannot improve your eyesight. I do not know if that boils down to “also impossible to get active focus”. But some have the theory that the ciliary muscle might play an important role in ActiveFocus ability (and I do believe that too, because I never experience any AF at all when my ciliary is locked up).
All in all, my current guess is:
You wear your normalized all the time, in the job too… is that true? And prob this normalized is actually too strong to give you any notable challenge indoors, especially with the typically super bad lighting in hospitals. Getting AF in bad, dim lighting - for me - is way harder.
So all in all: I think the differentials are the important starting point for getting the AF story going…