Welcome and be welcomed.
Know that no member on here is a Avian Vet or tech, so opinions are just that. Medical issues should be taken up with a Certified Avian Vet, which is what I would recommend here. A vet visit is the first thing I do with any new parrot, even if he is well and OK, it lets the vet establish a base line of his health, for future reference. But I would have that eye checked out, for sure.
Find a Specialist ABVP Diplomates have proven knowledge and expertise above and beyond what is required to practice veterinary medicine. Beyond that, they have earned the privilege to specialize in the treatment of one or more categories of animals. Diplomates are in 49 of the 50 US states...
In my opinion, any of the vets listed here should be better than a regular vet.
International contacts, too.
If none are near you, maybe you could call and ask for a recommendation for somebody in your area.
And... sometimes, distant vets will offer brief thoughts or advice...
Or... sometimes I find a place to start just by Googling "avian veterinarian near ((your location))"
Or maybe a local breeder might help... again, maybe Google?