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. 2024 Oct;33(8):824-828.
doi: 10.1111/jopr.13777. Epub 2023 Oct 9.

A novel technique for CAD-CAM assisted digital ocular prosthesis

Yassmin Ashour Tahmawy  1 , Faten Salah Eldin Mohamed  1 , Suzan Ahmed Elfeki  2 , Mervat Elsayed Abd-Ellah  1
Affiliations

A novel technique for CAD-CAM assisted digital ocular prosthesis

Yassmin Ashour Tahmawy et al. J Prosthodont. 2024 Oct.

Abstract

There are various techniques available for constructing a custom ocular prosthesis. The present technique report describes a digital workflow for constructing an ocular prosthesis using computed tomography integrated with digital technologies. The outer region of the healthy eyeball was segmented to produce the top surface of the prosthesis, while the contour and bottom surface were segmented from the tissue bed of the anophthalmic socket. The iris position was determined by tracing the optical nerve and confirmed by superimposing the patient's facial scan onto the soft tissue model of the computed tomography. Using these parameters, a standard tessellation language file for the ocular prosthesis was generated and 3D printed. The iris was then printed via UV technology using digital photographs of the patient's contralateral eye; characterization of the sclera and the final layer of clear acrylic resin were done conventionally.

Keywords: 3D printed; UV printing; computed tomography; facial scanning; ocular prosthesis.

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References

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