A gas bubble is used in which procedure to assist retinal reattachment?

A gas bubble is used in which procedure to assist retinal reattachment?

• A. Pneumatic Retinopexy
• B. Cryopexy
• C. Vitrectomy
• D. Scleral Buckle

Answer: (A)

Gas tamponade with a intravitreal bubble is used to support retinal reattachment. In Pneumatic Retinopexy, a small sterile gas bubble is injected into the vitreous cavity and rises to seal the retinal tear when the patient’s head is positioned so the bubble presses against the tear. After this, laser photocoagulation or cryopexy is applied around the tear to create a scar that permanently adheres the retina to the underlying tissue. The gas bubble provides temporary internal support as the adhesion forms and then gradually resorbs over days to weeks (types like SF6 or C3F8 are used, with longer-acting gases lasting longer). This approach is suitable for select rhegmatogenous detachments with a few superior breaks and minimal proliferative vitreoretinopathy, and it is less invasive than vitrectomy or scleral buckle. Other options rely on external indentation or surgical removal of the vitreous and do not use an intravitreal gas bubble for tamponade.

Gas tamponade with a intravitreal bubble is used to support retinal reattachment. In Pneumatic Retinopexy, a small sterile gas bubble is injected into the vitreous cavity and rises to seal the retinal tear when the patient’s head is positioned so the bubble presses against the tear. After this, laser photocoagulation or cryopexy is applied around the tear to create a scar that permanently adheres the retina to the underlying tissue. The gas bubble provides temporary internal support as the adhesion forms and then gradually resorbs over days to weeks (types like SF6 or C3F8 are used, with longer-acting gases lasting longer). This approach is suitable for select rhegmatogenous detachments with a few superior breaks and minimal proliferative vitreoretinopathy, and it is less invasive than vitrectomy or scleral buckle. Other options rely on external indentation or surgical removal of the vitreous and do not use an intravitreal gas bubble for tamponade.