Quote from dryeyeinFL:

I couldn't find anything on the Nasacort AQ listed side effects about dry eye. I kept eliminating meds to figure out if one was giving me the severe dry eye. All that remained was my blood pressure medication and Nasacort AQ. I haven't taken the nasal spray for the past two nights and my eyes seem almost normal again. I have been having a severe dry eye problem since mid-Jan. and haven't been able to wear my contact lenses (hate glasses since I am very nearsighted). The docs have inserted punctal plugs in my tear ducts (they fell out) and prescribed a steroid eye drop (didn't work). I went to the eye doc yesterday. He doubted that the Nasacort AQ would cause severe dry eye, but he told me to eliminate it for a few days to see. If it doesn't work, he will give me a stronger steroid drop and then Restasis.

This doesn't quite make sense to me. The active ingredient in Nasacort is a steroid. So if it is causing your dry eyes, why would they give you steroid eye drops? If steroid eyedrops relieve your dry eyes, how could the steroid nasal spray be the problem? Perhaps it is another ingredient in the spray. Maybe you can try switching to Flonase or Rhinocort and see if the problem persists.