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 Table of Contents  
LETTER TO EDITOR
Year : 2016  |  Volume : 2  |  Issue : 2  |  Page : 139-141

Fabrication of custom-made eye prosthesis with accuracy


1 Department of Maxillofacial Prosthodontics and Implantology, Peoples College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India
2 Department of Maxillofacial Prosthodontics and Implantology, Rajarajeshwari Dental College, Bengaluru, Karnataka, India
3 Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India

Date of Web Publication13-Jan-2017

Correspondence Address:
Sunil Kumar Mishra
Department of Maxillofacial Prosthodontics and Implantology, Peoples College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2455-3069.198376

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How to cite this article:
Mishra SK, Chowdhary R, Mahajan H, Hazari P. Fabrication of custom-made eye prosthesis with accuracy. J Curr Res Sci Med 2016;2:139-41

How to cite this URL:
Mishra SK, Chowdhary R, Mahajan H, Hazari P. Fabrication of custom-made eye prosthesis with accuracy. J Curr Res Sci Med [serial online] 2016 [cited 2020 Nov 24];2:139-41. Available from: https://www.jcrsmed.org/text.asp?2016/2/2/139/198376

Dear Sir,

Loss of an eye has a psychological effect on an individual and their families.[1] When time is taken into considerations, stock ocular prosthesis can be given to a patient.[2] But the disadvantages with a stock ocular prosthesis is that it may be ill fitting, and matching its shade with the contralateral eye is difficult. A custom made ocular prosthesis increases the adaptiveness and movement of the eyeball. An exact colour match of the iris and sclera can be achieved in comparison to the contralateral eye.[3],[4],[5],[6]

This article describes an effective method for the fabrication of custom-made eye prosthesis to simulate eye movements and exact colour matching to that of contralateral eye. Contralateral eye measurements were made as a guide for the fabrication of custom-made eye prosthesis. The measurements were taken from the inner canthus to the outer canthus, inner canthus to the center of pupil, center of the pupil to the outer canthus, bridge of the nose to the inner canthus, diameter of the cornea, length from the center of pupil to the lower eyelid, and center of the pupil to the outer limbus.

Primary impression of the defect was made with putty consistency addition silicone (Reprosil, Dentsply, Milford, USA), and the impression was poured in type II dental plaster (Kalabhai, Mumbai, Maharashtra, India) [Figure 1]. The special tray was fabricated with cold cure clear acrylic resin (DPI, Mumbai, India) and a syringe was attached to it [Figure 2]. The final impression of the socket was made with regular viscosity addition silicone (Reprosil, Dentsply, Milford, USA) and the instruction was given to the patient to do ocular movements to get functional impression of the socket. The impression was removed [Figure 3] and poured to obtain a three-piece split cast mold.
Figure 1: Primary impression of defect and primary cast

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Figure 2: Special tray with attached syringe

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Figure 3: Final impression of the socket

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Try-in of the wax pattern obtained from the three-piece split cast mold was done to evaluate size, comfort, simulation of eye movement, and eyelid support. It was then flasked, and dewaxing was done followed by packing with tooth color acrylic resin (DPI, Mumbai, Maharashtra, India) to obtain eye shell.

For making corneal button of the same size as that of the contralateral iris of the patient, a wax pattern was made, and flasking [Figure 4] and dewaxing were done. The mold was packed with clear heat cure acrylic resin (Dentsply, Milford, USA) and polymerization was done. The corneal button was removed from the mold, and finishing and polishing was done [Figure 5]. Black acetate disk as the same size of the contralateral iris was cut from a sheet [Figure 6] and painted with acrylic paints (Camlin, Mumbai, Maharashtra, India). The painted iris disk was checked for color matching with the contralateral eye and was allowed to dry. With the help of adhesive (Fevikwik, Pidilite, Mumbai, India) the corneal button was adhered to the iris disk, and care was taken to avoid any air entrapment [Figure 7]. The obtained assembly was placed in the center of the eye shell made with tooth-colored acrylic resin (DPI, Mumbai, India) [Figure 6] with the help of measurements taken from contralateral eye. Try-in was done to evaluate the center of the iris, eyelid support, and position to be same as that of contralateral eye. A layer of wax was placed over the surface of sclera shell, and flasking and dewaxing were done. Red color threads were placed to the sclera portion of the shell to simulate capillaries, and packing of the mold was done with clear acrylic resin (Dentsply, Milford, USA). Curing was done, and the prosthesis was finished and polished [Figure 8].
Figure 4: Wax pattern of the corneal button after flasking

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Figure 5: Finished and polished corneal button

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Figure 6: Black acetate disk for iris fabrication and tooth-colored resin eye shell

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Figure 7: Painted iris disk glued to corneal button

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Figure 8: Custom-made eye prosthesis

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Custom-made eye prostheses provide more esthetic and precise result when compared to stock-eye prostheses. The commonly available materials and simple technique described in this article make it relatively easy to fabricate a custom-made eye prosthesis exactly simulating the contralateral natural eye with greater accuracy and which is acceptable to patients.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
  References Top

1.
Manoj SS. Modified impression technique for fabrication of a custom made ocular prosthesis. Anaplastology 2014;3:129-30.  Back to cited text no. 1
    
2.
Taicher S, Steinberg HM, Tubiana I, Sela M. Modified stock-eye ocular prosthesis. J Prosthet Dent 1985;54:95-8.  Back to cited text no. 2
    
3.
DaBreo EL, Schuller DE. Surgical and prosthetic considerations in the management of orbital tumors. J Prosthet Dent 1992;67:106-12.  Back to cited text no. 3
    
4.
Ow RK, Amrith S. Ocular prosthetics: Use of a tissue conditioner material to modify a stock ocular prosthesis. J Prosthet Dent 1997;78:218-22.  Back to cited text no. 4
    
5.
Mishra SK, Ramesh R. Reproduction of custom made eye prosthesis maneuver – A case report. J Dent Oral Hyg 2009;1:59-63.  Back to cited text no. 5
    
6.
Gupta RK, Padmanabhan TV. Prosthetic rehabilitation of a post evisceration patient with custom made ocular prosthesis: A case report. J Indian Prosthodont Soc 2012;12:108-12.  Back to cited text no. 6
    


    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6], [Figure 7], [Figure 8]



 

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