Sinusitis may affect your vision to some degree. And I know it is hard to cure sinusitis. Sinusitis can be called rhinosinusitis too. It is is inflammation of the paranasal sinuses. It can be caused by infection, allergy, or autoimmune problems. So I suggest you to treat with your sinusitis first and then your vision problems will disappear on their own.
Yes, it does. But you may need to have your eyes or sinusitis diagnosed by doctors first. They will give good suggestions and provide with timely medical treatment to prevent the situation from getting worse. In most cases, sinusitis is caused by a viral infection and resolve over the course of 10 days. In United States, it is a common condition.