@article{3106025, title = "Trapped pre-macular bubble of octafluoropropane gas masquerading as retained submacular perfluorocarbon liquid", author = "Petrou, P. and Kokosiouli, D.-G. and Patel, T. and Banerjee, P.J. and Georgalas, I. and Papakonstantinou, D. and Brouzas, D. and Dacruz, L.", journal = "Case Reports in Ophthalmology", year = "2019", volume = "10", number = "2", pages = "200-204", publisher = "S Karger AG", issn = "1663-2699", doi = "10.1159/000499855", keywords = "fluorocarbon; perflutren, adult; Article; case report; clinical article; clinical examination; eye fundus; eye photography; hand movement; human; internal limiting membrane; male; middle aged; pars plana vitrectomy; pathological reflex; priority journal; retina detachment; retina macula hole; spectral domain optical coherence tomography; visual acuity; vitrectomy", abstract = "Introduction: To demonstrate, with the aid of retinal imaging, an abnormal post-operative macular appearance caused by the presence of a "fragmented" pre-retinal bubble of octafluoropropane (C3F8) masquerading as retained subretinal perfluorocarbon liquid (PFCL). Methods: This is an interventional case presentation. Results: Colour fundus photography high-resolution spectral domain-optical coherence tomography (SD-OCT) and clinical progress demonstrate that the abnormal reflex was caused by the presence of a small fragment of C3F8 becoming lodged at the pre-foveal area. Conclusion: Submacular entrapment of various substances used during vitrectomy has been described in a number of case reports and case series. To our knowledge, this is the first described case of a retained fragment of fluorocarbon gas trapped at the macula following successful retinal detachment repair and highlights a previously unreported cause of an abnormal foveal appearance. However, clinical examination together with the use of SD-OCT is helpful in differentiating the appearance from that seen in other retained vitrectomy adjuncts. © 2019 The Author(s). Published by S. Karger AG, Basel." }