I'm not a reptile expert but I do wish to become a veterinarian specializing in herps so I do take great interest to all of the health threads on this forum so I hope no one minds me posting my 2 cents
Since no one could give a straight out answer and you are unable to get to the vet, I thought I'd do a bit of my own research.
After searching for 'eye' problems in pythons/reptiles I came across one line that I do believe led to a possible out come:
"A vitamin A deficiency can lead to swelling of the snake's eye ridges". After reading this I looked into Vitamin A deficiencies in reptiles and swelling around the eyes is the majority 'opening' symptom to this problem. Now I'm not saying it is as I am not a vet nor an expert (as stated), I'm just giving another suggestion and anyone can correct me if wrong
This is what I found out about it:
A vitamin A deficiency in reptiles can be a serious (and in some cases severe) illness for reptiles. Owners typically notice swollen eyelids or swelling around the eyes as the first symptom of the illness. The reptile
may also include some of the following symptoms: swelling around the mouth, nasal discharge, stomatitis, weakness, loss of appetite/weight loss and a decreased growth rate. It is best to be treated early by a vet as severe cases can lead to ongoing health issues. Trying to treat the problem yourself with vitamin A supplements can be a bad thing as giving too much vitamin A is harmful (Although I'm sure you wouldn't treat without consulting a herp vet first, just adding it in
).
But in saying all of this, if he is fed an appropriate diet with the sufficient amount of vitamin A in his diet this shouldn't be the issue.
Once again I was just putting a suggestion forward.
Good luck and let us know how he goes!