Virtual Reality and Mixed Reality‐Assisted Endoscopic DCR in Extremely Complex Lacrimal Obstructions

Author:

Nowak Rafal12,Nowak‐Gospodarowicz Izabela1,Rękas Marek1,Ali Mohammad J.13ORCID

Affiliation:

1. Department of Ophthalmology Military Institute of Medicine‐National Research Institute Warsaw Poland

2. Department of Ophthalmology Jozef Strus City Hospital Poznan Poland

3. Govindram Seksaria Institute of Dacryology L.V. Prasad Eye Institute Hyderabad India

Abstract

ObjectiveTo report the techniques and outcomes of virtual reality (VR) and mixed reality (MR)‐assisted powered endoscopic dacryocystorhinostomy (DCR) in extremely complex lacrimal drainage obstructions.MethodsA prospective, non‐randomized clinical study was performed in complex syndromic congenital nasolacrimal duct obstruction (CNLDO) and post‐traumatic secondary acquired lacrimal duct obstruction (SALDO) in the setting of Le Fort fractures. All patients underwent preoperative planning in VR and intraoperative planning with a step ahead with MR assistance during the surgery. Surgery was supported by mixed reality intraoperative guidance with the use of the prearranged 3D models and real‐time‐rendered digital models. Parameters assessed include demographics, clinical presentation, complexities of the nasolacrimal duct obstruction, preoperative and intraoperative utility of VR and MR models, surgical techniques, complications, and outcomes.ResultsThe technique is described as a proof of concept in challenging situations with Apert syndrome and traumatic SALDOs with gross malposition of the sac, and gross nasal and lacrimal anatomical deformities. The VR models helped the surgeon to assess the details of the altered anatomy preoperatively to plan an appropriate approach. Intraoperatively, MR models were present in the surgeon's view without disturbing the endoscopic procedure. Intermittently, the surgeon could pull any of the models virtually present in the operating room, slice them, rotate them, and intricately study the alterations in a stepwise manner, as the surgery proceeds.ConclusionVirtual reality and mixed reality‐assisted powered endoscopic DCR can be an alternate approach reserved for extremely challenging cases of complex syndromic CNLDOs and post‐traumatic SALDOs.Level of Evidence4 Laryngoscope, 134:3508–3515, 2024

Funder

Hyderabad Eye Research Foundation

Publisher

Wiley

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