It still requires the glasses, which surgeons expressly hate. The manner in which 3D is generated, by use of the glasses, causes headaches and skews the surgeons' vision, which they simply will not accept. This technology has been around for a while and has failed every step of the way.
Furthermore, the Viking is only for little penny ante minimally invasive procedures, not the big boy stuff that the DViS will be used for. It is no competition.
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