According to a study published by the American Ophthalmological Society 2004, sinus disease may cause a person to develop strabismus. But the conclusion of the study goes on to say that this association is “difficult to prove.”
This study is very unusual in that most of the patients were unaware they even had sinus disease, “although in retrospect, several reported improved health and decreased facial pain after clearing of sinusitis.”
I work for a doctor who treats sinusitis and does sinus surgery, yet I have never seen evidence of a connection between sinusitis and strabismus. I showed the link to him, as well as to others who treat sinusitis.
The sinus surgeon I work for, Dr. Michael Marsh, said that “chronic sinusitis may lead to low grade inflamation in the orbit that could lead to a fibrosis (and possibly strabismus),” but that he had never noted any association between sinusitis and strabismus.
Another prominent sinus doctor, Dr. Murray Grossan, said, “While injury to the lateral rectus muscle of the eye is possible during sinus surgery, infection affecting the eye muscle and not the entire eye seems remote. Ethmoid Sinusitis does occur in children, and examining for this in recent onset strabismus makes sense, considering that the child’s ethmoid sinus walls bordering the eye are thin.”
Both Dr. Marsh and Dr. Grossan pointed out that the article itself says this connection between sinus and strabismus is inconclusive. The study says that more research needs to be done, but it is an interesting concept.