ASOPRSFall Scientific SymposiumSyllabus
163
T10
A LowCostOcular ProsthesisUsing3-Dimensional Printing
Benjamin Erickson
1
, Daniel Chao
1
, LandonGrace
2
,MauroFittipaldi
2
,Wendy Lee
1
.
1
BascomPalmer Eye Institute, University ofMiami,
Miami, FL, UnitedStates,
2
Mechanical andAerospace EngineeringDepartment, University ofMiami, Coral Gables, FL, UnitedStates
Introduction:
Hand painted, custom fit prostheses crafted by awell-trained ocularist arewidely agreed to offer the best functional
and cosmetic rehabilitation for patientswith anophthalmic sockets. Unfortunately,many of the indigent patientswe serve cannot
afford a custom prosthesis and only a small number are able to obtain one via charitable consideration. Inadequate projection and
poor colormatching limit the utility of available stock prostheses.Accordingly,we partneredwith our department of engineering to
design and produce a semi-custom prosthesis that can be produced at low cost using digital photography and three-dimensional
(3D) printing.
Methods:
Our design consists of a clear front plate, a replica of the patient’s healthy contralateral iris, and an off white back
plate that snap together to produce a comfortable and cosmetically acceptable prosthesis (Figure 1).The front plate ismolded in
acrylic from a template created using computer assisted design and 3D printing.The patient’s healthy iris is photographedwith a
slit lamp camera,miniaturized to 11.5mm in diameter, and printed on photo paper.This iris replica fits into a recessed circle on
the anterior surface of the back plate. In order tominimize the need for specialized expertise andmaterials, our design does not
involve taking a custom impression of the anophthalmic socket. Rather, the back plate,which is 3D printed from a FDA approved
biocompatiblematerial, is available in several different sizes based on the projection patterns of awide range of custom prostheses
that we analyzed.
Results:
To date,we have produced the following prototype and are in the process of obtaining institutional approval to initiate
clinical use (Figure 2).
Conclusions:
Loss of an eye is a traumatizing experience; psychological wellbeing and social integration depend on the availability
of a prosthesis that replicates the patients’ pre-morbid appearance as closely as possible.Many of our indigent patients are currently
unable to achieve these goals, even thoughwe can fund and perform their surgery.While our design is not intended to replicate or
replace the art of the ocularist,we believe that it will provide a safe, and reliable tool for rehabilitation of patientswith lessermeans.
References:
1.Artopoulou II,Montgomery PC,
Wesley PJ, Lemon JC. Digital imaging in the
fabrication of ocular prostheses. J Prosthet Dent.
2006Apr;95(4):327-30.
2. Kumar P,Aggrawal H, Singh RD, Chand P, Jurel SK,
Alvi HA, Gupta SK.A simplified approach for placing
the iris disc on a custommade ocular prosthesis:
report of four cases. J Indian Prosthodont Soc. 2014
Mar;14(1):124-7.
3. GoiatoMC, Bannwart LC, HaddadMF, Dos
Santos DM, PesqueiraAA,MiyaharaGI. Fabrication
techniques for ocular prostheses – an overview.
Orbit. 2014 Jun;33(3):229-33.
DetailedProgram
—Thursday,October 16, 2014
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