Think about milestones, when making all your 20/20 gains.
-2.50 means having to have two pairs of glasses (differential & normalized), and definitely needing glasses for distance. -1.25, no more need for close-up glasses, and often no need even for distance glasses (at least during nice daylight outdoor walks).
It’s just a bit over one diopter of difference in numbers, but a huge difference in terms of everyday vision.
Takeaway – milestones, rather than just looking at the final goal (of 20/20). That’s how you get maximum enjoyment out of the process, and keep motivation high.
You can definitely get back to 20/20, one diopter at a time.