Prosthetic Contact Lenses
By Michelle Stephenson
Prosthetic contact lenses
mask flaws and improve the appearance of an eye disfigured from a birth defect, trauma, or eye disease.
If certain structures of the injured or disfigured eye also fail to function properly, these special
contact lenses can also be designed to block excess light from reaching the back of the eye and causing
vision problems.
Your eye care provider
can match prosthetic contact lenses to the appearance of a healthy eye by using a pre-made set or by ordering
custom-painted contact lenses. Similar to regular contact lenses, prosthetic contact lenses can
be gas permeable
or soft.
Care of these special contact lenses also is similar to that of regular soft or gas permeable lenses.
[See also: Care of gas permeable or
soft contact lenses]
These special lenses can be made from a prescription to correct poor vision, or they can be completely
colored to mask eyes that can no longer see.
Eye Conditions That May Benefit From Prosthetic Contact Lenses
Many different injuries, conditions, or infections can lead to disfigurement of the eye and leave
an individual feeling self-conscious about appearance. Prosthetic lenses specially designed to match
the other eye as closely as possible can make the disfigured eye less conspicuous.
Eye conditions and accompanying disfigurement that may benefit from use of a prosthetic contact lens
include incomplete formation of the pupil (aniridia),
lack of pigment or color in the eye (albinism),
double vision (diplopia),
and disfigurement of the eye surface (cornea) from
trauma.
This patient was fitted with a hand-painted contact lens to make her right eye appear more
like her left eye. Photos courtesy of Marietta Vision Contact Lens Service (Marietta, Ga.).
When involuntary shaking of the eye occurs in a condition known as
nystagmus, prosthetic contact lenses
can be used to mask eye movement and improve appearance.
People with albinism or other eye conditions creating light sensitivity
(photophobia) can benefit from
prosthetic lenses that reduce the amount of light entering the eye.
[See also: Light sensitivity]
Colored contact lenses known as occluders also may be prescribed to block vision in the stronger eye of an
infant or child who has amblyopia,
as a way of strengthening vision in the weaker eye. This method is useful also because younger children may
remove eye patches and disrupt therapy that involves blocking vision in the stronger eye.
[See also: Amblyopia]
How Prosthetic Contact Lenses Are Ordered
Your eye doctor could have a pre-made set on hand, but may need to special-order your prosthetic contact lens
by supplying the manufacturer close-up photographs of both of your eyes so that proper color and appearance matching
can be done.
Some suppliers also provide a sample palette of color selections so that eye doctors can then select the
best match for special ordering. An eye exam also will be needed to determine what, if any, vision correction may be
required.
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