I have a condition called keratoconus. It was misdiagnosed until I was in my 40's and meant I was never given glasses that corrected my defect until then. The day I got the correct prescription for my glasses I cried and cried and cried. I have quite good close vision but miss all details at a distance of more than a couple of meters. The details matter.
May I just say . . . so very sorry you had no/poor diagnosis for so long: and so very glad you now have have a map (a name & a prescription) that gives you back some of the unspeakably precious gift of vision.