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. Author manuscript; available in PMC: 2008 Apr 30.

Published in final edited form as: J Cataract Refract Surg. 2007 May;33(5):770–772. doi: 10.1016/j.jcrs.2006.11.033

Surgeon's view of the right eye depicting an infusion/air–fluid exchange technique for controlling graft tamponade pressure during DSAEK. The posterior lamellar graft is shown in its final position with a subtotal air fill maintained at 30 mm Hg by the Accurus surgical system. The system is connected via tubing to a 30-gauge needle that is inserted through a long nasal corneal tract (left). After 10 to 15 minutes, a partial air–fluid exchange is begun while the tamponade pressure is maintained (right). A manual infusion cannula is used to separate the wound margins of a paracentesis to allow controlled escape of air during the exchange.

Surgeon's view of the right eye depicting an infusion/air–fluid exchange technique for controlling graft tamponade pressure during DSAEK. The posterior lamellar graft is shown in its final position with a subtotal air fill maintained at 30 mm Hg by the Accurus surgical system. The system is connected via tubing to a 30-gauge needle that is inserted through a long nasal corneal tract (left). After 10 to 15 minutes, a partial air–fluid exchange is begun while the tamponade pressure is maintained (right). A manual infusion cannula is used to separate the wound margins of a paracentesis to allow controlled escape of air during the exchange.