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Fig. 5 | Advances in Simulation

Fig. 5

From: A custom virtual reality training solution for ophthalmologic surgical clinical trials

Fig. 5

A homogeneous application of the laser to the pars plana tissue is paramount and thus the user needs to understand the visual cues that indicate the current state of ablation. The pictures above show actual renderings from the implant insertion simulator that illustrate how the laser ablation changes the appearance of the pars plana tissue. The first few laser shots provide distinct localized deformation and discoloration of the tissue. Further ablation results in the expression of a fine granular texture as well as further darkening of the tissue. Eventually, perforation of the pars plana tissue will occur and result in percolation of thick vitreous or a prolapse of liquefied vitreous. The VR simulation is sufficiently accurate to compute a heat map illustrating the degree of ablation with a high-spatial resolution and thus allows the user to train its perception of the state of ablation and ensure a homogeneous application

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