Posters

Risk factors for silicone oil-induced glaucoma after pars plana vitrectomy for retinal detachment

Poster Details

First Author: A.Ben Youssef TUNISIA

Co Author(s):    H. Zgolli   O. Fekih   S. Mabrouk   I. Zghal   L. Nacef        

Abstract Details

Purpose:

To study the incidence and risk factors of silicone oil induced glaucoma (SOIG) after pars plana vitrectomy and silicone oil internal tamponade for complicated retinal detachment (RD).

Setting:

Hédi Rais Institute of Ophthalmology, Department "A", Tunis, Tunisia.

Methods:

We conducted a descriptive and analytic retrospective study including 35 eyes of the 30 patients who underwent surgery in the Hédi Rais Institute Ophthalmology of Tunis. Pars plana vitrectomy with silicone oil internal tamponade was performed in all cases.  Silicone oil induced glaucoma was defined as intraocular pressure greater than 21 mm Hg that appeared and/or persisted for more than 6 weeks.  The incidence of SOIG, risk factors and therapeutic management were studied.

Results:

Our population was on average 58.7 years old [21-72] with a sex ratio equal to 2.15. Patients were treated for complicated RD: 15 eyes with rhegmatogenous RD and 20 eyes with diabetic tractional RD. Preoperative primary open angle glaucoma (POAG) was noted in 19 % of cases. SOIG was found in 58% of cases. Temporary rise in intra-ocular pressure was noted in 4 cases. Significant statistical correlations were found between SOIG development and history of trauma, aphakia, preoperative POAG, diabetes, silicone oil emulsion in the anterior chamber for more than 12 weeks and the quality of silicone oil (non purified).

Conclusions:

Silicone oil induced glaucoma is an uncommon complication of RD treatment. Various risk factors have been identified. Knowing and understanding these factors and the parthenogenesis of secondary glaucoma when using silicone oil might be of great aid to the management of this disease. Although medical treatment is sometimes inefficient, it's important to thoroughly discuss its use and plan silicone oil removal surgery.

Financial Disclosure:

None