I am simply interested. We clearly want our prescription eyeglasses upgraded every 24 months approximately. Additional sorcerers with spectacles and also does Harry simply head to a muggle optometrist? Or will there be somebody in the wizarding globe would you this in a more enchanting method?

Sam e with dental practitioners. Do they head to muggle dentists for dental function and cleanings, or may they're going into a sorcerer for that? Has Rowling actually mentioned such a thing?

Why is this posted under Furniture? And you do realize that Harry is fantasy. Any details about his world that JK Rowling did not give in the books you can make up for yourself. And no she never mentioned that. I would assume, since Harry first appeared wearing the glasses, that his guardians took him to a Muggle optometrist for testing and prescription.

Whether Harry continued to see one once he knew about his heritage is never mentioned.

I think you are putting entirely too much thought into this.