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DISTICHIA
- (Extra Eyelashes) and ECTOPIC CILIA
Extra
Eyelashes are found right on the eyelid edge, and they grow from
glands in the eyelid edge. They are also called distichia - as they
form a double row of eyelashes.
Extra
eyelashes are seen in many breeds of dogs; notably Cocker Spaniels
(American & English), Bulldogs, Poodles, Staffordshire Bull Terriers,
Shetland Sheepdogs, Golden Retrievers, Dachshunds and the Pekingese.
Ectopic
cilia are usually single eyelid hairs that are growing the wrong
way, and they actually grow right onto the eye. They may cause severe
pain. Ectopic cilia can occur on occasions in any breed, but most
commonly seen in Shelties and Pekingese.
Clinical
Signs
1. Squinting
2. Blinking
3. Watery discharge
4. Conjunctivitis
5. Corneal irritation - scarring with vascular or pigment tissue
6. Corneal ulceration
Surgery
is only required if the extra eyelashes are actually causing disease.
There
are 2 techniques that Veterinary Eye Specialists use:
1.
Transconjunctival Excision (TCE): Using the operating microscope
each individual extra eyelash root is excised. This technique is
preferred for ectopic cilia removal. The surgery is done on the
inside of the eyelid so no scarring is evident.
2.
Cryoepilation: This technique may be preferred in some dogs
especially those with thin eyelids. This involves freezing the affected
area of eyelid and then plucking the eyelashes. This may cause swelling
of the eyelid for 3 - 5 days, and may cause temporary pigment loss.
The pigment generally returns within 6 to 24 weeks.
Post
Operative Care
In
rare cases an eyelash loose in the wound may irritate the eye. Please
call us if the eye seems to be sore or squints after surgery. We
generally check the eyelids 10 to 14 days after surgery. At this
time we may “pluck” dead eyelashes from the eyelids. The next check
is then 3 months after surgery, this is the time when “new” extra
eyelashes should be apparent.
Further
surgery may be required
At
any one time 10-15% of the eyelash follicles are inactive no treatment
can destroy these extra eyelash follicles. With either technique
it is possible for new extra eyelashes to grow. More surgery may
be required if these new extra eyelashes cause irritation. It is
rare for surgery to be done a third time.
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