Glaucoma as a result of eye surgery

Has anyone developed glaucoma after retinal or other eye surgery?  I had four surgeries in my L eye; two retinal, then two cataract (which resulted from the retinal surgeries!),  After all this, I developed glaucoma in the L eye only.  I had a vitrectomy and the surgeon placed silicone oil in my eye; later when he went to remove it, he wasn't able to get all of it.  It is suspected that it is the oil which is causing my elevated IOP.  My R eye pressure is normal.  I'd love to hear from anyone who's been through something like this.  Anyone?