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Hybrid 23/25-Gauge Direct Perfluorocarbon Liquid-Silicone Oil Exchange
Abdelrahman M Elhusseiny1, Riley N Sanders1, Abdallah A Ellabban2,3
1Department of Ophthalmology, Bernice and Harvey Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
Purpose:
To describe a novel technique for direct perfluorocarbon liquid (PFCL)-silicone oil exchange that aims to reduce the inherent risk of intraoperative intraocular pressure spike.
Methods:
We use the conventional setup for passive PFCL-silicone exchange, but intentionally create a mismatch between the passive PFCL aspiration and the active silicone injection that favors the PFCL extrusion. This is achieved by converting one port to a large gauge one-23 or 20-gauge.
Results:
We did not note the occurrence of high intraocular pressure spikes with this technique as noted by disk pallor or attenuated vessels.
Conclusion:
A hybrid 23/25-gauge technique for direct PFCL-silicone oil exchange is safe and reduces the risk of intraoperative intraocular pressure spike.
