Just wanna let you know about the following I just read on wikipedia about the active ingredient in Rinexin:
In the United States, PPA is no longer sold due to an increased risk of haemorrhagic stroke. In a few countries in Europe, however, it is still available either by prescription or sometimes over-the-counter. In Canada, it was withdrawn from the market on 31 May 2001. It was voluntarily withdrawn from the Australian market by July 2001. In India, human use of PPA and its formulations was banned on 10 February 2011, but the ban was overturned by the judiciary in September 2011.^
You probably already knew that, but anyway, be careful! 🙂
Also interesting from that article is that the drug is dopaminergic - it acts on the central nervous system. So it might be helping your eyes in a way that is totally unrelated to your nose/sinusitis.
Also I'd like to ask: have you tried some other decongestant meds, such as xylometazoline or tramazoline? They cannot be used long term (this leads to rebound congestion), but I'm considering them for cases when I have an eye crisis.