SD-OCT detects signs of silicone oil emulsification
Optical coherence tomography detected small hyper-reflective areas in eyes that underwent silicone oil tamponade for various indications, according to a study.
The retrospective study included 11 eyes of 11 patients. Vitrectomy and silicone oil tamponade had been performed secondary to rhegmatogenous retinal detachment in nine patients, panuveitis with retinal necrosis in one patient, and recurrent full-thickness macular hole in one patient.
Investigators used SD-OCT to observe eyes after surgery. They also obtained SD-OCT images of model eyes in which emulsified silicone oil was injected into the anterior chamber.
Hyper-reflective spherical tiny droplets were identified in 10 eyes. Subretinal hyper-reflective droplets were seen in one eye. Tiny intravitreal silicone oil droplets were identified in one eye.
Images of the model eyes showed signs of silicone oil emulsification that resembled signs detected on in vivo images.
“Further studies are required to determine the incidence, clinicopathologic and functional significance of probable silicone oil emulsification and deposition within the retinal layers,” the study authors said.
Disclosure: The study authors have no relevant financial disclosures.