Cataracts or glaucoma tend to turn the eyes a milky color. That said, an acute glaucoma attack is extremely painful and can be a medical emergency. It sounds more like an infection or possibly a loss of tear production/dry eye which can create a lot of oozy gunk.
I would think you could get an initial consult with a veterinary ophthalmologist for a few hundred dollars at most. At least then you would know if you were dealing with something very painful and/or life threatening.
Good luck and please let us know!
I am so sorry to read this but I have no idea what this could be. I would think your own Vet would know if this is Glucoma or cataracts.
There is no place closer to take him? Any teaching hospitals? Maybe call around and see if another Vet closer to you may have more experience?
Please keep us posted.