Immediate Postoperative Intraocular Pressure Changes After Anterior Chamber Air Fill in Descemet Membrane Endothelial Keratoplasty

Abstract

Adequate inferior iridectomy greatly alleviates the risk and severity of acute IOP rises after nearly full anterior chamber air tamponade in DMEK. Standard IOP adjustment at the end of DMEK surgery with postoperative IOP monitoring especially in the first 2 postoperative hours is advisable when there is no postoperative default air release.

Impact of donor tissue diameter on postoperative central endothelial cell density in Descemet Membrane Endothelial Keratoplasty

“…The data have been collected prospectively within the Cologne DMEK database , using the RED‐Cap (Research Electronic Data Capture) electronic data capture tool, which is a secure, web‐based application designed to support data capture for research studies (Stanzel et al. ). The study was conducted in adherence to the tenets of the Declaration of Helsinki and was approved by the local Institutional Review Board (No.…”

One-year outcome after Descemet membrane endothelial keratoplasty (DMEK) comparing sulfur hexafluoride (SF6) 20% versus 100% air for anterior chamber tamponade

“…Pilocarpine 1% eye drops were applied three times a day as long as the anterior chamber was filled with air or gas covering the pupil's bottom margin. Patients were instructed to keep a strict supine position postoperatively, at least for three days with only bathroom privileges under continuous monitoring of IOP 21. IOP was measured at least four times a day.…”

Temporary Filtering Bleb Failure Induced by Anterior Chamber Sulfur Hexafluoride Gas: A Complication after Descemet Membrane Endothelial Keratoplasty

“…It is also controversial how long the tamponade should be left in the anterior chamber. Many surgeons prefer a tamponade release after a short period of complete anterior chamber filling to mitigate the risk of acute IOP elevations [7-10]. Stanzel et al [10] reported on an intensified postoperative IOP observation within 24 h and found mostly mild IOP increases in 40 cases with retained tamponade.…”

“…Many surgeons prefer a tamponade release after a short period of complete anterior chamber filling to mitigate the risk of acute IOP elevations [7-10]. Stanzel et al [10] reported on an intensified postoperative IOP observation within 24 h and found mostly mild IOP increases in 40 cases with retained tamponade. The authors concluded that adequate inferior iridotomy greatly alleviated the risk and severity of acute IOP rises after nearly full anterior chamber air tamponade in DMEK.…”

“…Early graft detachment is a frequent postoperative complication [5, 6]. Divergent opinions have been expressed amongst DMEK surgeons on how long the gas bubble should be retained in the eye [7-10]. In order to prevent a pupillary block by the gas bubble, standard operating procedures include the preoperative application of YAG laser iridotomy or perioperative surgical iridectomy in the lower peripheral iris.…”