title: Intravitreal expansion of perfluorocarbon bubbles.
abstract: The intraocular expansion of perfluoromethane (CF4), perfluoroethane (C2F6), and perfluoropropane (C3F8) was determined by a direct method for measuring intravitreal gas. A bubble of CF4 was found to expand 1.9 times the volume initially injected; C2F6 expanded 3.3 times; C3F8 expanded four times. The expansion characteristics of the experimental gases were compared with those of sulfur hexafluoride (SF6) and octofluorocyclobutane (C4F8), two gases already in clinical use.
mesh_terms: D000818:Animals; D005466:Fluorocarbons / Q000032:analysis; D055585:Physical Phenomena; D010825:Physics; D011817:Rabbits; D014822:Vitreous Body / Q000032:analysis
chemical_list: D005466:Fluorocarbons