Subfoveal Choroidal Thickness Changes Following Pars Plana Vitrectomy with Silicone Oil Endotamponade for Rhegmatogenous Retinal Detachment

Khalil, Hossam El-Din Ahmed; Gouda, Ahmed Taha; Badr, Tarek Ibrahim; Wahba, Engy Abd El-Malak

doi:10.21608/ejmr.2022.260268

Subfoveal Choroidal Thickness Changes Following Pars Plana Vitrectomy with Silicone Oil Endotamponade for Rhegmatogenous Retinal Detachment

Document Type : Original Article

Authors

Ophthalmology department, Faculty of Medicine, Beni-Suef University, Egypt

10.21608/ejmr.2022.260268

Abstract

Introduction: The choroid is a thin brownish membrane composed of blood vessels, melanocytes and connective tissue. It is main function is to supply the outer layer of the retina with blood and nutrients. Silicone oil (SiO) is a widely used intravitreal tamponade in the repair of retinal detachment (RD) when long-term tamponade is needed. With the advancement of spectral domain optical coherence tomography (SD-OCT), in vivo images of the choroid with sufficient contrast and resolution are now available for measuring choroid thickness (CT) and visualizing choroid microstructures. Aim of the work: To assess subfoveal choroidal thickness changes following pars plana vitrectomy with silicone oil endotamponade for rhegmatogenous retinal detachment 3 months after pars plana vitrectomy and 1 month after silicon removal. Patients and methods: In our study we will include 25 patients who underwent Pars plana vitrectomy (PPV) and Silicon oil endotamponade injection and subsequent Silicon removal for rhegmatogenous RD in our Retina clinic. we measure SFCT 3 months after PPV and silicon injection and one month after silicon removal using optical coherence tomography (SD-OCT). Results: mean SFCT values of the RRD operated eyes were 270.6 ± 7.3 um 3 months after PPV and 252.2 ± 11.3 um 1 month after SiO removal. When the mean values were compared, the decrease in SFCT was statistically significant (p = <0.0001, ANOVA). Conclusion: SFCT seems to decrease after the removal of the SiO which indicates that choroidal parameters should be taken into account during or after surgery for rhegmatogenous RD.

Keywords

Main Subjects

Surgery ·

References

Newsom RS, Johnston R, Sullivan PM, Aylward GB, Holder GE, Gregor ZJ (2011) Sudden visual loss after removal of silicone oil. Retina 24:871–877
Cazabon S, Groenewald C, Pearce IA, Wong D (2012) Visual loss following removal of intraocular silicone oil. Br J Ophthalmol 89:799–802
Herbert EN, Liew SH, Williamson TH (2015) Visual loss after silicone oil removal. Br J Ophthalmol 89:1667–166
Christensen UC, La Cour M (2012) Visual loss after use of intraocular silicone oil associated with thinning of inner retinal layers. Acta Ophthalmol 90:733–737.
Budde M, Cursiefen C, Holbach LM, Naumann GOH (2013) Silicone oil-associated optic nerve degeneration. Am J Ophthalmol 131:392–394
Linsenmeier RA, Padnick-Silver L (2000) Metabolic dependence of photoreceptors on the choroid in the normal and detached retina.
Sızmaz S, Ku¨c¸u¨kerdo¨nmez C, Pınarcı EY, Karalezli A, Canan H, Yılmaz G (2013) The effect of smoking on choroidal thickness measured by optical coherence tomography. Br J Ophthalmol 97:601–604
Bradbury M, Landers MI: Pathogenetic mechanisms of retinal detachment; in Ryan S, Wilkinson C (eds): Retina. St Louis, Mosby, 2001, p 1987.
Spaide RF, Koizumi H, Pozzoni MC. Enhanced depth imaging spectral-domain optical coherence tomography [erratum in Am J Ophthalmol 2009; 148: 325]. Am J Ophthalmol 2008; 146: 496-500.
Narins RS, Beer K. Liquid injectable Silicone: a review of its history, immunology, technical considerations, complications, and potential.Plast Reconstr Surg 2006; 118(3): 77-84.
Kimura M, Nishimura A, Yokogawa H, Okuda T, Higashide T, Saito Y (2017) Subfoveal choroidal thickness change following segmental scleral buckling for rhegmatogenous retinal detachment. Am J Ophthalmol 154:893–900
Miura M, Arimoto G, Tsukahara R, Nemoto R, Iwasaki T, Goto H (2012) Choroidal thickness after scleral buckling.Ophthalmology 119(7):1497–1498
Krystyna Raczyńska and Leopold Glasner(2018); The Influence of Silicone Oil on the Ganglion Cell Complex After Pars Plana Vitrectomy for Rhegmatogenous Retinal Detachment.