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. 2020 Aug 17;20(1):336.
doi: 10.1186/s12886-020-01608-5.

Characteristics, fates and complications of long-term silicone oil tamponade after pars plana vitrectomy

Nakhleh E Abu-Yaghi  1 , Yazan A Abu Gharbieh  2 , Ahmad M Al-Amer  2 , Saif Aldeen S AlRyalat  2 , Mohammed B Nawaiseh  3 , Mohammad J Darweesh  3 , Leen R Alkukhun  3 , Alaa M Abed  2 , Omar A Saleh  4 , Osama H Ababneh  2
Affiliations

Characteristics, fates and complications of long-term silicone oil tamponade after pars plana vitrectomy

Nakhleh E Abu-Yaghi et al. BMC Ophthalmol. .

Abstract

Background: Silicone oil tamponade has become a mainstay in treatment of advanced retinal detachment due to multiple etiologies. The aim of this study is to assess the characteristics, fates and complications of long-term silicone oil tamponade after par plana vitrectomy (PPV), and to compare the outcomes of different silicone oil viscosities used in a cohort of consecutive patients.

Methods: This is a retrospective comparative case series of eyes undergoing vitrectomy with silicone oil tamponade for retinal detachment by a single surgeon using different oil viscosities that were followed for one year with the silicone oil in situ. Visual acuity (VA), intraocular pressure (IOP) and complications associated with the follow up period were analyzed and compared.

Results: Eighty-five eyes of 85 patients were included in this study. Forty three patients had 1000 centistoke (cs) oil injected and 42 patients had 5000cs oil utilized. Demographic, cause of retinal detachment and preoperative ocular characteristics were similar in both groups. Long term complications in both groups included ocular hypertension (67.4% vs 66.7%), keratopathy due to silicone oil emulsification and migration to the anterior chamber (7.0% vs 11.9%), recurrent retinal detachment (4.7% vs 19%) and epiretinal membrane formation (7% vs 19%). In the 1000cs oil group, there was no significant difference between baseline IOP and any subsequent visit. There was a significant difference between baseline IOP and visits at day 1 (with IOP difference of 2.61 mmHg (±6.5)) (p = 0.028), 1 month (with IOP difference of 3.52 mmHg (±8.1)) (p = 0.026), 4 months (with IOP difference of 6.38 mmHg (±9.3)) (p = 0.005), and one year (with IOP difference of 4.24 mmHg (±11.1)) (p = 0.048), all higher in the post-operative period in the 5000cs oil group. Excluding the first post-operative day, no significant difference was found for VA between baseline visits and subsequent visits for either silicone oil groups.

Conclusion: In this cohort of patients with long-term silicone oil tamponade after PPV to treat retinal detachment, IOP increased significantly in patients who received 5000cs silicone oil. There was no significant difference between other complication rates in patients receiving either oil viscosities. Long term silicone oil tamponade remains a viable option in certain cases, and a vigilant follow up for complications is necessary to limit any adverse effects and improve visual and surgical outcomes.

Keywords: Intraocular pressure; Ocular hypertension; Pars plana vitrectomy; Retinal detachment; Silicone oil.

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Conflict of interest statement

The authors declare that they have no competing interests.

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