In retinal sealing/retinopexy, what is used?
The gases commonly employed for tamponading the retina are sulphur hexafluoride (SF6) or perfluoropropane (C3F8). These are injected after sealing the breaks with cryopaxy. The gas bubble remains in contact with the tear for 5-7 days and are absorbed later. Ref: Parson's 22 nd edition page no. 335
Sulphur hexafluoride
Carbon monooxide
Nitrous oxide
S02
Vitreous and retina