A. Sergienko, L. Lytvynchuk, I. Kozlovska, Galina Y. Lavrenchuk, O. Fylypchuk, V. Siriachenko (Kyiv, Ukraine)


To evaluate the incidence of secondary glaucoma after pars plana vitrectomy due to silicon oil emulsification in different terms of endotamponade and to study the efficacy of trabeculectomy in refractory cases to medical treatment.


Sixty-four (64) patients with different duration of silicon oil endotamponade were included in the study. Anterior chamber angel configuration, intraocular pressure (IOP) and ocular outflow facility were examined. The frequency of elevated intraocular pressure and decreased outflow facility was growing respectively to the duration of silicon oil endotamponade. Emulsified silicon droplets were found in anterior chamber starting from 2 weeks after endotapmonade. In majority of cases intraocular pressure was stabilized after silicon oil removal or replacement. In number of cases IOP was controlled with medical therapy. Four glaucoma patients refractory to medical treatment after silicon oil removal underwent trabeculectomy with long-term IOP reduction.

Effectiveness / Safety:

Early detection of silicon oil droplets in anterior chamber angle serves as an indication for silicon oil removal or replacement. Patients with high myopia and silicone oil in anterior chamber must be carefully followed up due to high incidence of secondary glaucoma. Trabeculectomy can be useful to reduce and control IOP in cases, which are refractory to medical therapy.