Abstract
Purpose
To report the customized approach of patients with anophthalmia or microphthalmia with bespoke ocular prosthesis.
Methods
Retrospective analysis of case series.
Results
The study included cases with anophthalmia with upper eyelid deformity (one patient), microphthalmia and contralateral corectopia (one patient), microphthalmia with contralateral corneal graft (one patient), and congenital clinical anophthalmia with contralateral sclerocornea (one patient). Using techniques of embedded autologous hair and coating of adhesive pigment emulsion in the ocular prosthesis, the physical appearance of, respectively, an upper eyelid, corectopia, corneal graft, and sclerocornea was reproduced.
Conclusion
Tailoring the ocular prosthesis to the distinct condition of the anophthalmic socket and contralateral eye adds to the success of rehabilitative prosthetic treatment of the patient.
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Introduction
The cosmetic rehabilitation of patients with anophthalmia and microphthalmia involves the design of an ocular prosthesis. In particular, prostheses based on acrylic-resin allow adequate anatomic and aesthetic fittings [1,2,3]. As patients with an ocular prosthesis prefer their face as seen in a mirror, the aesthetic result is best assessed using mirrors instead of photographs [4]. Herein we report a series of patients with ocular prosthesis tailored to the specific conditions of the anophthalmic/microphthalmic socket and contralateral eye.
Case reports
Case 1
A 25-year-old female suffered from loss of the right eye and full-thickness marginal defect of the right upper eyelid following a bomb explosion 3 years before (Fig. 1a). We recreated a mock eyelid integrated in the prosthesis. The appearance of skin within the prosthesis was emulated with dark brown pigment similar to the skin colour of the patient. To resemble an eyelid margin with lashes, a thin stripe of black pigment and small pieces of autologous brow hair were added at the lower level of the artificial skin area, all of which were embedded in the resin of the prosthesis through coating of blended pigment powder and liquid resin (Monopoly, Factor II inc., USA) (Fig. 1b). The volume of the prosthesis was enlarged to enable its retention within the anophthalmic socket. Both the prosthesis and remaining upper eyelid had limited range of motion (Fig. 1c).
Case 2
A 70-year-old man, with bilateral congenital corectopia, had anophthalmos of the left eye secondary to a perforating injury at the age of 10 years old. The patient was unhappy with the “normal” prosthetic eye for the different physical appearance with his seeing eye (Fig. 2a). For this reason, we designed a prosthesis with an off-centre pupil that matched the corectopia of the contralateral eye (Fig. 2b).
Case 3
A 47-year-old man with anterior segment dysgenesis due to Axenfeld-Rieger syndrome had a history of bilateral glaucoma tube-shunt surgery and penetrating keratoplasty, of which the right eye evolved to phthisis with esotropia (Fig. 3a). The patient requested an ocular prosthesis that resembled the eye prior to the phthisis. To mimic corneal graft sutures, we embedded small pieces of autologous scalp hair at the level of the iris in the resin of the prosthesis (Fig. 3b) [5]. The iris-pupil-complex of the prosthesis was positioned in relation to the eyelid fissure in such a fashion to obtain orthotropia (Fig. 3c).
Case 4
A 1-year-old boy with mutation of the sex determining region Y-box 2 (SOX2) gene had congenital clinical anophthalmia of the right eye and severe sclerocornea of the left eye. There was no light perception in both eyes and visual prognosis was poor. To stimulate orbital growth, we fitted scleral shells with increasing size at regular intervals in the right socket (Fig. 4a). To create the appearance of a sclerocornea, a thin layer of resin with white pigment was added anterior to the blue-coloured iris. The corneal vessels were reproduced, similar to the standard method for scleral vessels, with fluffs of red embroidering thread (Fig. 4b, c).
Discussion
In this study we present a series of four patients with severe physical eye defects and compromised vision and appearance, in whom symmetry with the contralateral eye was achieved with bespoke ocular prostheses. Case 1 highlights the potential to recreate the appearance of an eyelid with the ocular prosthesis as an alternative to a facial epithesis. Although not giving a skin feel as with silicone, the acrylic eyelid integrated in the ocular prosthesis was preferred to a silicone eyelid prosthesis because of the higher durability and superior retention of hair [6]. Case 1 and 3 introduce the use of autologous hair in an ocular prosthesis to reproduce, respectively, eyelashes and corneal sutures as alternative to synthetic fibres [7]. Case 2, 3 and 4 show the possibility to customize the shape and colour of the artificial cornea, iris and sclera to the microphthalmic socket and contralateral eye [8]. Although possibly used in common practice, to the best of our knowledge, such a prosthetic approach tailored to distinct eye conditions has not been described in the literature.
Summary
What was known before
A bespoke ocular prosthesis aims to restore facial symmetry combined with comfortable wear.
The fabrication of an ocular prosthesis is an artisanal process performed by an ocularist.
What this study adds
This study highlights the importance of a customized approach in prosthetic rehabilitation and describes a tailored technique using pigment and autologous hair to design an ocular prosthesis in patients with altered anatomy of the anophthalmic socket or fellow eye.
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Ruiters, S., de Jong, S. & Mombaerts, I. Bespoke ocular prostheses. Eye 33, 1158–1160 (2019). https://doi.org/10.1038/s41433-019-0385-3
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DOI: https://doi.org/10.1038/s41433-019-0385-3