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Abstract #109267 Published in IGR 24-1
Intraoperative Optical Coherence Tomography for Ab-Interno Trabecular Bypass Glaucoma Surgery
Ang BCH; Betzler BK; Lim SYJournal of Glaucoma 2023; 32: e151-e155
PURPOSE: To demonstrate a novel surgical technique utilising intra-operative optical coherence tomography (iOCT) to aid implantation and optimal placement of two trabecular bypass minimally invasive glaucoma surgery (MIGS) devices - the iStent Inject W and the Hydrus Microstent. METHODS: Report on surgical technique with Video accompaniment. RESULTS: In iStent Inject W implantation, where the depth of stent implantation has been correlated to post-operative outcomes. the iOCT allows real-time appreciation of device implantation depth relative to the trabecular meshwork surface. In Hydrus Microstent implantation, the iOCT allows confirmation of successful stent placement within the Schlemm's canal, particularly in cases where intra-operative gonioscopic view of the three microstent windows is impeded. CONCLUSION: The iOCT is a feasible and useful imaging adjunct to ensure optimal placement of trabecular bypass MIGS devices such as the iStent inject W and Hydrus Microstent.
Department of Ophthalmology, Tan Tock Seng Hospital, National Healthcare Group Eye Institute, Singapore Department of Ophthalmology, Woodlands Health Campus, National Healthcare Group Eye Institute, Singapore Yong Loo Lin School of Medicine, National University of Singapore, Singapore Army Medical Services, Singapore Armed Forces, Singapore.
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