In reply to mypyrex:
Too little info.
What are the pressures; have they deteriorated; by how much; what drops have been tried and how long did they work; etc...
However, more helpfully (I hope):
- elective surgery is on an 18 week pathway unless there's other urgency
- risk of going blind is pretty urgent (and trumps - or should - any trip you have planned/paid for)
- however if it's been steady gradual progression you may be able to safely delay a few weeks
- it's a minor op in the scheme of things; recovery should be fast and the no fly time minimal.
If your visit to Cham is August you should be fine.