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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 is possible.
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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.
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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.
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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. Read
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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.
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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.
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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.
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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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