What is perfluoro n octane?
Summary: Perfluoro-n-octane (PFO) is a heavy liquid that is used as an aid for complicated retinal surgical procedures. Although PFO is usually removed intraoperatively, the radiographic appearance of retained PFO may mimic an intraocular foreign body or vitreous hemorrhage.
What does perfluoron do?
Perfluoron (perfluoro-n-octane; Alcon), transparent and heavier than water, facilitates intraoperative retinal attachment in a supine patient. Perfluoron’s low viscosity makes it easy to inject into the eye and to manipulate during surgery.
What is a Retinectomy?
Retinectomy refers to the excision (removal) of the retina. During retinectomy, the complete peripheral retina may be excised, but the central retina is untouched as its function is more important for vision. Excising only the peripheral retina also prevents postoperative proliferation and traction.
What is PFO in eye surgery?
PFO is a heavy liquid used to flatten the retina during vitreoretinal surgery, and it should be removed intraoperatively to prevent subretinal migration.
How do you get rid of subretinal PFO?
Subretinal PFCL outside the fovea may be removed directly and safely using a small-gauge needle. If the retinal break caused by the needle is small enough and no traction is evident, it may not be necessary to apply laser.
What is pneumatic retinopathy?
Pneumatic retinopexy is a surgery to repair certain types of retinal detachments. It is usually an outpatient procedure, which means you don’t need to stay in the hospital. Before surgery, your eye is numbed with local anesthesia. Then the eye doctor (ophthalmologist) injects a gas bubble into the middle of the eye.
Is Pneumatic a Retinopexy?
Pneumatic retinopexy is a procedure to repair a detached retina and restore vision. Unlike other procedures to treat a detached retina, it often takes place in an office setting. The retina is a layer of cells at the back of your eye. These cells use light to send visual information to your brain.
How is perfluoro n octane used in surgery?
Summary: Perfluoro- n -octane (PFO) is a heavy liquid that is used as an aid for complicated retinal surgical procedures. Although PFO is usually removed intraoperatively, the radiographic appearance of retained PFO may mimic an intraocular foreign body or vitreous hemorrhage.
How is perfluorooctane used in high voltage electronics?
Perfluorooctane. Perfluorooctane, also known as octadecafluorooctane, is a fluorocarbon liquid—a perfluorinated derivative of the hydrocarbon octane. It can be a good substitute for insulating oil in high voltage electronics. In addition to heat transfer applications, it has also been used as a breathable fluid in partial liquid ventilation.
What can perfluorooctane be used as a substitute for?
?) Perfluorooctane, also known as octadecafluorooctane, is a fluorocarbon liquid—a perfluorinated derivative of the hydrocarbon octane. It can be a good substitute for insulating oil in high voltage electronics. In addition to heat transfer applications, it has also been used as a breathable fluid in partial liquid ventilation.
How is perfluorooctane produced in the Fowler process?
Perfluorooctane can be manufactured by the Fowler process or by electrochemical fluorination . The Fowler process involves moderating the action of elemental fluorine with cobalt fluoride in the gas phase from octane. Electrolysis in hydrogen fluoride of nonanoic acid will produce both perfluorononanoic acid and perfluorooctane.