I'm a layperson, but a high hyperope who's learned a thing or two
along his 4+ decades of being in the patient's side of the chair.

I think you should get your son evaluated by the best pediatric
strabismus opthalmologist that you can -- much as Dr. Leukoma
recommends.

I know a name or two, in a couple of parts of the country.  Others on
this forum may know additional eye docs.

In a painfully obvious fashion, I think this could go one of two ways:
he could be fine for years and years -- even decades -- and then need
glasses ... or....

The "or" is that his eyes (and the neurologic components of vision)
could be overtaxed by all of the accommodation that he'll surely need
to use, to get through school and life.  This could cause eye-turn
(strabismus), double vision, accommodative difficulties, etc., etc.

Trust me when I say ... you don't want the "or."

A thorough exam by a truly excellent pediatric ophthalmologist will
help to understand if there are ANY deficits or problems with his
accommodative or binocular function that COULD make all of that
accommodation problematic.

Along with you and his teachers watching for any and all the usual
symptoms of vision trouble, I'd probably have him checked by a good OD
or ophthalmologist more frequently than the standard annual visit.
As with so many things, early intervention offers the best possible
outcome.

Neil