advertisement
Abstract #6800 Published in IGR 4-1
The effect of vitrectomy with silicone oil tamponade on intraocular pressure and anterior chamber morphology
Suic SP; Sikic JCollegium Antropologicum 2001; 25 Suppl: 117-125
The authors measured the tamponading effect of silicone oil, saline, and air after vitrectomy, on intraocular pressure (IOP) and aqueous humor outflow in 85 patients with highly proliferative retina and vitreous changes. Silicone oil as a retinal tamponading agent after vitrectomy was used in 45 patients, and saline or air in 39 patients. The mean IOP measured at one month after treatment was greatly elevated in patients with silicone oil tamponade compared to those with saline or air tamponade. At six and 12 months examinations, mean IOPs were compared in these two groups of patients. Gonioscopy revealed silicone oil emulsification and presence of emulsified bubbles in the anterior chamber in 22.22% of patients, and narrowing of the chamber angle in several patients with silicone oil tamponade. IOP elevation following vitrectomy with silicone oil tamponade was found to be of a transient rather than a permanent nature, since it regressed after silicone oil removal. This transient elevation was due to silicone oil tendency to emulsify. Silicone oil bubbles changed the morphology of the anterior chamber angle and fine trabecular structures by creating a barrier to aqueous humor outflow.
Dr. S.P. Suic, Department of Ophthalmology, Clinical Hospital Center Zagreb, Zagreb, Croatia
Classification:
9.4.11.5 Glaucomas associated with vitreoretinal surgery (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)
