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EYE CONDITIONS
CHERRY
EYE
A cherry
eye is a prolapse of the gland of the third eyelid. In some cases
the cherry eye can be associated with eversion of the third eyelid
cartilage. Read
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CONJUNCTIVITIS
Conjunctivitis
in dogs, especially long standing cases, is generally due to allergic
conditions. In cats most cases of conjunctivitis are due to infections
from Feline Herpes Virus and Chlamydia.
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COPING
WITH A BLIND PET
Blind dogs cope extremely well as they have great senses of smell.
Take your dog on the same walk each day, allow your dog to sniff
as many things as possible. Read
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CORNEAL
ENDOTHELIAL DEGENERATION – CORNEAL OEDEMA
Corneal
oedema is fluid retention in the cornea. Clinical Signs: The appearance
of corneal oedema is a blue or cloudy cornea. Read
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CORNEAL
LACERATIONS & PENETRATING CORNEAL INJURIES
For large
wounds, surgery will be required to suture the cornea with the aid
of the operating microscope. In most cases dissolving sutures will
be used, so there will be no need for suture removal.
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CORNEAL
ULCERATION
Types of
Corneal Ulcers: 1. Corneal ulcer, 2. Slow healing (indolent) corneal
ulcer, 3. Deep corneal ulcer / descemetocele. Read
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DRY EYE
– KERATOCONJUNCTIVITIS SICCA
Diagnosis:
Schirmer Tear Test Normal 15 mm wetting/min. Breeds predisposed:
1. West Highland White Terrier, 2. Cavalier King Charles Spaniel,
3. Shih Tzu, 4. Miniature Schnauzer, 5. Bulldogs, 6. Bull Terrier,
7. Pug, 8. American and English Cocker Spaniels, 9. Poodle. Read
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EXTRA
EYELASHES (DISTICHIA) 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. Read
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FELINE
CORNEAL SEQUESTRATION
A Feline
Corneal Sequestrum is a condition unique to cats. It can occur in
any breed but is especially common in Persians, Himalayans, Colorpoints,
Abbysinians and Burmese. Cats of any age can be affected. Read
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GLAUCOMA
The normal
pressure within the eye is 10 to 25 mm Hg. When the pressure is
increased (usually > 30 mm Hg) a diagnosis of glaucoma is made.
We measure the pressure in the eye (intraocular pressure - IOP)
with a tonometer. Read
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HYPERTENSION
Hypertension
is high blood pressure. The normal systolic blood pressure in dogs
and cats can vary but is usually below 150mm/Hg. We generally start
treatment for hypertension when the blood pressure is increased
above 170m/Hg.
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LENS
LUXATION
The lens
normally sits behind the iris (colour of the eye). A lens luxation
is when the lens moves from its normal position. Read
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PANNUS
Also know
as superficial stromal keratitis, Ubbereiter’s syndrome. Clinical
Signs Most affected dogs have corneal lesions. There are 2 basic
types of pannus. 1. Vascular – usually arise from the lateral limbus,
2. Pigment. Read
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PERSISTENT PUPILLARY
MEMBRANES (PPMS)
Persistent
Pupillary Membranes (PPMs) are strands of tissue that fill the front,
fluid chamber of the eye. These tissues should have dissolved away
as the eye developed. Read
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PLASTIC
EYELID SURGERY
Possible
Diagnosis: 1. Entropion (eyelid rolled in), 2. Medial Entropion,3.
Ectropion (eyelid rolled out), 4. Drooping upper eyelid, 5. Eyelid
tumour, 6. Oversized Eyelid Openings. Read
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PRA -
PROGRESSIVE RETINAL ATROPHY
Progressive
Retinal Atrophy (PRA) is an inherited, genetic disease that causes
vision loss. Breed Predisposition: 1. Australian Cattle Dogs, 2.
Labradors, 3. Poodles, 4. Cocker Spaniels, 5. Terriers.
Read
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RETROBULBAR
DISEASE
Retrobulbar
disease means any disease process that is occurring behind the eye.
The clinical signs of these are: 1. Prominent eye, 2. Prolapse of
the third eyelid, 3. Corneal ulcer, 4. Pain on opening the mouth,
5. Blindness. Read
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STAR
CATARACTS (POSTERIOR, POLAR SUBCAPSULAR) CATARACTS
Any opacity
of the lens is called a cataract. There are many causes for cataracts,
some of which are inherited. If the cataracts are in both eyes and
they mature the animal may become blind. Surgery is available in
the cases where the cataract grows and causes vision loss. Read
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SUDDEN
VISION LOSS IN DOGS
Sudden vision
loss in dogs can be due to problems in one of three areas: the retina,
the optic nerve or in the brain.
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THIRD
EYELID CARTILAGE EVERSION
This is
when the third eyelid cartilage is folded over so that the free
edge of the third eyelid points away from the eyeball towards the
lower eyelid. Breed Predisposition: 1. Bassett Hound, 2. Weimeraner,
3. Bulldogs, 4. Rottweilers. Read
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UVEITIS
Uveitis
is inflammation in the eye. This inflammation (or reaction) often
helps in the healing, but often the eye overreacts and the inflammation
causes damage to the eye, even if the primary cause has gone.
Read
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VIRAL
KERATITIS – FELINE HERPES VIRUS INFECTION
Viral infections
in the cornea are seen most commonly in cats. The infection is caused
by Feline Herpes virus, which cannot infect humans. Feline Herpes
virus also can cause cat flu symptoms. Read
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WATERY
EYES & TEAR DUCT PROBLEMS
Causes:
1. Irritation - This causes an increase in tear production. Such
conditions include extra eyelashes, ectopic cilia, conjunctivitis,
entropion, corneal diseases. Read
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