Could longtime broken tooth turn into something affecting nasal passages or even optic nerve?

Optic Nerve. I agree with dr melder. Just wanted to state that if you have any situation in which there is a concern of the optic nerve, please do not hesitate in investigating it! it is paramount that you receive proper ophthalmology (not optometry) evaluation including even ct and/or mri. The imaging study will tell you if the optic nerve is being affected by something that is pushing up against the nerve.
Unlikely. Unlikely but if it is in the upper jaw it could lead to an infection of the maxillary sinus. Highly unlikey to affect your optic nerve.