Efficacy of intravitreal triamcinolone acetonide in the visualization of the vitreous during pars plana vitrectomy

Purpose: To retrospectively evaluate the efficacy of triamcinolone acetonide (TA) injection during pars plana vitrectomy, to facilitate the visualization of the internal limiting membrane (ILM), residual vitreous cortex (RVC) and preretinal membranes.

Material and methods: Pars plana vitrectomy was performed in 164 patients due to rhematogenous retinal detachment, vitreous

hemorrhage, macular hole, lens luxation, endophthalmitis, intraocular foreign body, malignant glaucoma, preretinal membrane

and proliferative diabetic retinopathy. After surgical separation of the posterior vitreous and removal of any visible epiretinal

membrane, TA suspension was injected over the posterior pole into the vitreous cavity. Then, visualized RVC was removed and

ILM peeling was performed.

Results: Upon intravitreal injection of TA, vitreous and ILM could be visualized by numerous particles of TA dispersed as white

specks. RVC and ILM were completely removed in all patients. No complications related to the use of TA were encountered,

even after complex procedures such as, vitrectomy combined with scleral buckling or phakoemulsification surgery in a long term

follow up.

Conclusions: Intraoperative visualization of RVC and ILM with intravitreal TA was found to be a useful adjunct to pars plana

vitrectomy. This technique may facilitate both removal of epiretinal membrane and separation of vitreous, especially in patients

with undetached vitreous.