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Scientists make 3D-printed eye prosthetics that look and feel real | This is a faster digital method for crafting lifelike prosthetic eyes using 3D printing, promising enhanced comfort and appearance for users.
Manual processes to produce ocular prostheses are time-consuming and yield varying quality. Here, authors present an automatic digital end-to-end process for custom ocular prostheses. It creates shape and appearance from image data of an OCT device and produces them using a full-colour 3D printer.
The conformer’s base shape \({{{{{\rm{S}}}}}}({{{{{{\bf{x}}}}}}}_{c})\) is modified by cutting off the front and creating a matching frustum recess at the back to form circular window with a diameter of about 15 mm through which the OCT-device images the socket (Supplementary Fig. The biocompatibility of the finished ocular prosthetics was assessed according to the ISO 10993 series of standards, which involved analytical chemistry, in vitro and in vivo testing to determine the likelihood of the device producing toxic responses in patients. For the statistical shape model (SSM) we perform a standard principal component analysis (PCA) using singular value decomposition (SVD) on a matrix composed from the flattened vertices positions (Supplementary Algorithm 3).
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