Glaucoma is not a common problem after a vitrectomy. If, however, you had steroids injected inside your vitreous
cavity after the surgery, the -- yes -- this can cause your eye pressure to go up, leading to glaucoma.
But, in and of itself, vitrectomy surgery is not a risk factor for glaucoma.
Why do you have glaucoma now? It is possible that an underlying glaucoma, or risk of getting glaucoma, was "in your future" and, since you are getting frequent eye examinations it was discovered the minute the glaucoma showed up. This, in the scheme of things, is a good thing....not that you have glaucoma, but is has been caught and treatment started before any damage could be done.
Does this make sense to you?
It's safe for you to press the positive feedback button now if you so desire. And, never fear, even after you press that button I don't go up in a puff of smoke -- I'll still be right here to continue helping you, but, as I do work for tips, I want to make sure you are happy before rating me.
Other then the glaucoma, how are things going? I hope you're doing much better....