Assessment of the fluid dynamic performance of a vitreous cutter

Alessandro Stocchino, Rodolfo Repetto, Mario Romano

Abstract


Vitreous cutters are surgical devices used during vitrectomy to remove the vitreous humor from the eye and replace it with tamponade fluids. The aim of the present work is to assess the performance of the EVA Phaco-vitrectomy System vitreous cutter (Dutch Ophthalmic Research Center (DORC) BV; Zuidland, The Netherlands) used with diff erent needle sizes and blade shapes. The analysis is based on laboratory measurements of fluid flow performed using the particle image velocimetry (PIV) technique.


Keywords


particle image velocimetry (PIV); vitrectomy; vitreous cutter

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References


Rossi T, Querzoli G, Angelini C, et al. Introducing new vitreous cutter blade shapes. Retina. 2014;34:1896-1904.


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