![]() As your eye refills with aqueous humor and the bubble continues to dissipate the line will move lower day by day until the gas bubble completely dissipates. This is where the gas bubble and your natural fluid (aqueous humor) meet. As the bubble dissipates to about half size you will be able to see a horizontal line across your vision. The bubble makes everything badly out of focus. The other common gases used for retina surgery are sulfur hexafluoride (SF 6), which dissipates in 10 to 14 days, and perfluoropropane (C 3F 8) which dissipates in 55 to 65 days. It will absorb slowly on its own.Ī bubble of air consists mostly of nitrogen and oxygen with small amounts of argon and carbon dioxide. Gas used in retina surgery does not have to be removed. ![]() The gas is used to prevent the subretinal fluid that naturally seeps from the inflamed tissues from reaching the area behind your repaired retina. Your retina specialist will choose the type of gas depending on the retina repair you had and how long your retina needs to be walled off from inflammatory fluids. The gas bubble needs to remain in your eye for as long as it takes to heal the repair and not longer. The type of bubble depends on your repair and how long the bubble needs to remain in your eye. The bubble doesn’t always have to be a medical gas, it could be just air. On occasion, general anesthesia may be required. In most cases, you receive IV sedation that will put you into a twilight state in which you are conscious but extremely relaxed, then your eye will be numbed. To do that your retina specialist will perform a vitrectomy and remove the vitreous humor gel, repair the retina, and then inject a gas bubble to wall off the repaired retina to allow it to heal. Many retina repairs require direct access to the torn, scarred, detached, or damaged retina. Your retina specialist may inject a gas bubble to fix your retina.
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