Movable ocular prosthesis / orthodontic seminars

Custom movable ocularCustom movable ocular
prosthesisprosthesis
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandentalacademy.comwww.indiandentalacademy.com

IntroductionIntroduction
 The eye was a symbol of life to theThe eye was a symbol of life to the
ancient world, particularly in Egypt,ancient world, particularly in Egypt,
where bronze and precious stone eyeswhere bronze and precious stone eyes
were placed on the deceased.were placed on the deceased.
 The Romans decorated statues withThe Romans decorated statues with
artificial eyes made of silver.artificial eyes made of silver.


 Ambrose Paré (1510-1590), a famousAmbrose Paré (1510-1590), a famous
French surgeon, was the first toFrench surgeon, was the first to
describe the use of artificial eyes to fitdescribe the use of artificial eyes to fit
an eye socket.an eye socket.

 Enamel prostheses (1820s-1890s)Enamel prostheses (1820s-1890s)
were attractive but were expensivewere attractive but were expensive
and not very durable.and not very durable.
 German craftsmen are credited withGerman craftsmen are credited with
the invention of glass eye in 1835.the invention of glass eye in 1835.

 The introduction of cryolite glass,The introduction of cryolite glass,
made of arsenic oxide and cyolite frommade of arsenic oxide and cyolite from
sodium-aluminum fluoridesodium-aluminum fluoride
(Na6A2F12), produced a grayish-white(Na6A2F12), produced a grayish-white
color suitable for a prosthetic eye.color suitable for a prosthetic eye.
 To make these glass eyes, a tube ofTo make these glass eyes, a tube of
glass was heated on one end until theglass was heated on one end until the
form of a ball was obtained.form of a ball was obtained.

 Various colors of glass were used likeVarious colors of glass were used like
paintbrushes to imitate the naturalpaintbrushes to imitate the natural
color of the eye.color of the eye.
 The glass art form flourished in FranceThe glass art form flourished in France
and Germany where fabricatingand Germany where fabricating
secrets were handed down from onesecrets were handed down from one
generation to the next.generation to the next.

 In the United States, eyes continued toIn the United States, eyes continued to
be made of glass until the onset ofbe made of glass until the onset of
World War II.World War II.
 German goods were limited andGerman goods were limited and
German glass blowers no longerGerman glass blowers no longer
toured the United States.toured the United States.

 The United States military, along withThe United States military, along with
a few private practitioners, developeda few private practitioners, developed
a technique of fabricating prosthesesa technique of fabricating prostheses
using oil pigments and plastics.using oil pigments and plastics.
 Since World War II, plastic hasSince World War II, plastic has
become the preferred material for thebecome the preferred material for the
artificial eye in the United States.artificial eye in the United States.

The main goals of the ocular prosthesis are to-
Restore facial esthetics,
Prevent eyelid collapse and deformity,
Protect the socket against injuries caused by
foreign bodies, dust and smoke,
Re-establish the correct route of the
lachrymal secretion to prevent accumulation
in the cavity, and
Preserve muscular tonus to avoid anti-
symmetrical alterations.

Stock eyeStock eye vsvs customcustom
eyeeye
 The need for artificial eyes can someThe need for artificial eyes can some
times be satisfied by stock eyetimes be satisfied by stock eye
prosthesis.prosthesis.
 They are relatively inexpensive andThey are relatively inexpensive and
can be delivered quickly.can be delivered quickly.
 No special skills or materials areNo special skills or materials are
required for fabrication.required for fabrication.

 Custom ocular prosthesis hasCustom ocular prosthesis has
improved adaptation to under lyingimproved adaptation to under lying
tissues,tissues,
 Increased mobility of the prosthesis,Increased mobility of the prosthesis,
improved facial contours,improved facial contours,
 Enhanced esthetics gained fromEnhanced esthetics gained from
control over the size of the iris andcontrol over the size of the iris and
pupil color of iris and sclera.pupil color of iris and sclera.

Case reportCase report
This is a caseThis is a case
report of a 60report of a 60
year old ladyyear old lady
who reported towho reported to
the OPD with athe OPD with a
enucleated leftenucleated left
eye socket.eye socket.

Diagnosis and treatmentDiagnosis and treatment
planningplanning
 Patient wasPatient was
diagnosed ofdiagnosed of
enucleated left eyeenucleated left eye
socket.socket.
 Custom ocularCustom ocular
prosthesis wasprosthesis was
planned.planned.

Fabrication ofFabrication of
 Preliminary impression obtainedPreliminary impression obtained
( external impression technique )( external impression technique )
 Fabrication of custom ocular trayFabrication of custom ocular tray
( modified millers technique )( modified millers technique )
 Final impression obtained with lightFinal impression obtained with light
bodied elastomeric impressionbodied elastomeric impression
materialmaterial
 Master cast obtainedMaster cast obtained
( Bumers technique )( Bumers technique )

 Fabrication of wax scleral blankFabrication of wax scleral blank
 Attachment of the iris & try in of theAttachment of the iris & try in of the
 Processing & finishingProcessing & finishing
 Insertion & maintenance of theInsertion & maintenance of the
prosthesis.prosthesis.

ImpressionsImpressions
 External impressionExternal impression
technique wastechnique was
employed withemployed with
alginate impressionalginate impression
material.material.

ImpressionImpression

The trayThe tray

Pouring of impressionPouring of impression

The primary castThe primary cast

The custom ocular trayThe custom ocular tray

Tray tried in the eyeTray tried in the eye

Final impressionFinal impression

Pouring the castPouring the cast

wax patternwax pattern

Intalgo surfaceIntalgo surface

Try inTry in

FlaskingFlasking

DewaxingDewaxing

The materialsThe materials

PackingPacking

Case 2Case 2

1. Never clean or soak your artificial eye in1. Never clean or soak your artificial eye in
rubbing alcohol because it will crack andrubbing alcohol because it will crack and
destroy the ocular prosthesis.destroy the ocular prosthesis.
2. Remove the ocular prosthesis only as2. Remove the ocular prosthesis only as
necessary. Too much handling can causenecessary. Too much handling can cause
socket irritation and result in excessivesocket irritation and result in excessive
secretions.secretions.
3. If you remove your ocular prosthesis, be3. If you remove your ocular prosthesis, be
sure to store it in water or soft contactsure to store it in water or soft contact
lens saline solution. This will keep depositslens saline solution. This will keep deposits
from drying on the surface.from drying on the surface.
MaintenanceMaintenance

4.To clean your prosthesis, use an4.To clean your prosthesis, use an
antibacterial soap. Wash the eye betweenantibacterial soap. Wash the eye between
your fingertips.your fingertips.
5.If you wish to or need to rinse out the5.If you wish to or need to rinse out the
socket, use sterile saline with bulbsocket, use sterile saline with bulb
syringe.syringe.
6.Any eye drops can be used with the6.Any eye drops can be used with the
artificial eye in place.artificial eye in place.
7.Visit at7.Visit at least once a yearleast once a year or more oftenor more often
to have your ocular prosthesis checked,to have your ocular prosthesis checked,
cleaned and polished.cleaned and polished.www.indiandentalacademy.comwww.indiandentalacademy.com

ConclusionConclusion
 The ocular prosthesis does notThe ocular prosthesis does not
provide eyes for the patient forprovide eyes for the patient for
vision .but does provide the eyes tovision .but does provide the eyes to
see for themselves and others.see for themselves and others.

ss

Movable ocular prosthesis / orthodontic seminars

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