![]() This would be extremely painful and could lead to loss of sight. The reduced pressure in the cabin will cause the gas bubble to expand. Gas bubble precautionsĪs long as the gas bubble remains in your eye, you must not fly in an aircraft. If you have to position your head down there are pillows, chairs, and mirrors that allow you to see around the room while in a face-down position. The line will move lower each day and the field of vision will get larger. The gas bubble wiur vision while it is in place, but as it dissipates a line will form across your vision where the newly forming fluid (aqueous humor) is gradually replacing the bubble. The bubble walls off the damaged area while it heals and prevents any fluid from flowing through the damaged area of the retina and into the subretinal space. If the retina detached at the bottom, the only way to get the bubble to press against the place of detachment is to place the head down. Head positioning after surgery is necessary to keep the gas bubble in the proper place. The surgery time ranges from 20 to 40 minutes, but varies greatly. Most retina specialists will perform vitrectomy for retinal detachment repair in an outpatient setting. Depending on the type of gas used and its concentration, it can take from three to ten weeks to fully dissipate. The vitreous gel does not grow back, but the eye can function with just the fluid that replaces the vitreous. In time the gas will dissipate and be replaced by the eye’s own fluids (aqueous humor). The vitreous will be replaced with a gas. Once the vitreous is removed, a freezing instrument or a laser is used to seal any tears in the retina. The second incision is used to insert a fiber-optic light to provide illumination of the eye, and the third is for any instruments that are used, including a “vitrector” for the removal of the vitreous.Ī vitrector is an oscillating microscopic cutter that slowly removes the vitreous. Through one incision a constant flow of fluid is passed into the eye. The surgery consists of making three small needle-sized incisions (about the width of an eyelash) into the white part of the eye (sclera). If patients prefer not to be awake during the procedure they can be given intravenous sedation or a general anesthesia. A heavy sedative is administered and then Lidocaine is injected around the eye to numb it. The SurgeryĪ vitrectomy is usually performed using local anesthetic. ![]() Then gas is injected into the eye to help keep the retina in place and prevent any fluid from leaking from the repaired tears and into the subretinal space. ![]() The surgery removes the vitreous gel from the eye, pushes the detached retina back into place, and seals any retinal tears in the retina. Vitrectomy for retinal detachment repair is an alternative method to scleral buckle or pneumatic retinopexy.Ī vitrectomy is a common surgical repair for a detached retina. ![]()
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