Besides a poisonous bug bite or an allergic reaction to something being possible causes, the main thing that can cause inflammation like that around the eyes is myxomatosis like preitler mentioned, and if it's this it's extremely serious and an emergency. But I've never heard of a case of it occurring in Utah. There have been a few along the west coast, so it is possible.
http://www.medirabbit.com/EN/Skin_diseases/Viral_diseases/Myxo/Myxo.htm (myxomatosis in rabbits)
I would very strongly suggest the rabbit be taken to an experienced rabbit vet
immediately as an emergency case. You need to tell them it's a possible emergency, and that your rabbit may have symptoms of myxomatosis because this would be a contagious disease to other rabbits. Just be aware that sometimes rabbits don't survive this, if this is what the rabbit has. But once the rabbit is put on antibiotics and anti inflammatories and the case isn't severe, that can sometimes give them a chance of surviving.
If it's not this but is a bug bite or allergies, then anti inflammatories and other medications, and possibly syringe feeding (if the rabbit isn't eating ) may be needed.
The best rabbit vet along the Wasatch front (if that's where the rabbit is located) is dr harris at wasatch exotics in ft union, but they are somewhat expensive. Another good one is dr Orr at what was creekside vet in draper, but its changed so not sure of the name now. In utah co there is dr Ipsen in payson who is decent. Or look at this rabbit vet list for north wasatch.
https://rabbit.org/vet-listings/