3D Model
WitmerLab doctoral student Donald G. Cerio developed a technique called “virtual ophthalmoscopy” to model and measure the visual fields of vertebrates, which was published in January 2020 in Vision Research (http://bit.ly/2RLF1So). This model is one of several species used for validating the virtual or “in-silico” workflow by comparing these results with in-vivo findings. Here, we modeled the visual field of Phalacrocorax carbo using the skull and interpupillary distance of OUVC 10982, a similarly sized double-crested cormorant, P. auritus. Blue represents contralateral overlap (binocular field), red represents the visual field of a single eye (monocular field), and grey represents the blind area. Yellow dots represent in-vivo data (Martin et al. 2008: http://bit.ly/2IFT05z), showing close correspondence of “virtual ophthalmoscopic” visual fields with those measured by Martin et al. in vivo. A VO barn owl is here: https://skfb.ly/6PVTw.
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