Table 3
Studies on pars plana vitrectomy and tube implantation
| Ref (study year) | No of eyes | Diagnosis of patients | Type of surgery | Type of implant | Glaucoma control (no of eyes) | Mean follow up (months) |
|---|---|---|---|---|---|---|
| Granham et al (1993) | 20 | Glaucoma associated with vitreoretinal disorders (neovascular glaucoma, aphakic or pseudophakic glaucoma) | Standard vitrectomy surgery+glaucoma seton valve surgery with pars plana tube insertion (8 cases) or tube insertion into anterior chamber (12 cases) | Molteno or Schocket implant | 15 | 4.2–28 |
| Smiddy et al(1994) | 10 | Glaucoma associated with disrupted anterior chamber (congenital, angle recession, phacomorphic, secondary angle closure, chronic open angle glaucoma) | Standard vitrectomy surgery +glaucoma seton valve surgery with pars plana tube insertion+ligation of tube | Molteno or Baerveldt implant | 9 | 3–24 |
| Varma et al (1995) | 13 | Glaucoma associated with shallow anterior chamber or vitreus prolapsus into anterior chamber and aphakic or pseudophakic glaucoma | Standard vitrectomy surgery +glaucoma seton valve surgery with pars plana tube insertion+ligation of tube | Baerveldt implant | 11 | 12–28 |
| Present study (1998) | 17 | Glaucoma associated with disrupted anterior chamber (angle recession, secondary angle closure) and aphakic or pseudophakic glaucoma | Standard vitrectomy surgery +glaucoma seton valve surgery with pars plana tube insertion | Molteno or Schocket implant | 16 | 4–71 |
