I was diagnosed with a sinus infection 2.5 weeks ago and after going through treatment with 2 different antibiotics, I still am having the pressure and pain. My immediate concern is that 2 days ago, I began experiencing double vision (it is worse when looking at images farther away). I have an appointment with my ophthalmologist in 2 days and an ear, nose, & throat specialist in a week. Should I seek immediate attention or is the double vision a result of the infection?
Hello! In general sinus infection does not cause double vision. There are a number of potential causes for double vision. This happens when you have eyes problems {for example the eyes are not be properly aligned (ostracism) or if you have a condition where the eyes do not work together correctly (convergence insufficiency), cataract,astigmatism, macular degeneration etc.}.  Myastenia graves (if you have weakness in the bodies muscles) You have to check for dialect, thyroid disease, and I recommend doing a brain CT examination immediately.