When the blind convergent opaque eye is more prominent than
the sighted globe the ocularist will attempt to color match
the iris pigments while making the pupil size as close to
that of the mydriatic aphakic sighted eye, (if it is not
too erose). This case proved to be initially quite
a challenge, since the young patient had a tendency to always
squint the sighted eye even when she wore her glasses.
The first before and after photos (Fig. 13A & B) bear this
out, whereas, the following two photos (Fig. 13C & D) taken
twenty four years later with same scleral cover shell prosthesis
would indicate this was of short duration.
Figure 13A
The evaluation prior to fitting a scleral cover shell prosthesis
over the right eye showed a prominent opaque eye with a distorted
cornea.
Figure 13B
The completed prosthesis gave the appearance that it was
the sighted globe and that the left eye was in need of a
prosthesis.
Figure 13C
A close up view of the affected right eye shows its prominence,
turning in, and still has the distorted corneal bulge, while
the left eye is no longer experiencing the squeezing of the
orbicularis muscle.
Figure 13D
All indications would show that the dysfunctional globe has
not changed in size and shape since the prosthesis was first
fitted 24 years earlier. There may be a need to replace
the prosthesis only because of the change in the iris pigments
over the years. (Note: The iris diameter is slightly
larger to give a more balanced aperture, and becomes more
cosmetically correct with a compensating minus power lens.)
|