That’s your call, I can’t decide that for you.
Figure out if she can easily recognize people, if she’s happy, comfortable, functioning normally with the diopters you choose. No squinting, no failing at social cues, all that.
Worth noting, going to an opto basically equates being told you need stronger glasses. It’s business model. Been discussed by my ad nauseam at every possible opportunity. https://endmyopia.org/why-i-dont-trust-optometrist-measurements/. 😉