Download TonoVet® A Breakthrough Handheld Magnetic Rebound Tonometer

®
TonoVet
A Breakthrough
Handheld Magnetic Rebound Tonometer
for Measuring Intraocular Pressure
Six measurements are made with a short beep after each one. After six
measurements are made, the TonoVet will calculate and display the reading.
GLAUCOMA
Glaucoma is caused by elevated intraocular pressure, due to an imbalance of
production and drainage of the clear fluid (aqueous humor) within the eye.
PRIMARY GLAUCOMA occurs without previous trauma or ocular disease and
can be bilateral. It is known to occur in certain breeds and a significant
percentage of primary glaucoma is considered to be hereditary.
SECONDARY GLAUCOMA occurs as a consequence of some other disease
such as ocular inflammation, lens dislocation, intraocular tumors or trauma.
VETERINARY SPECIFIC
Calibrated for dogs, cats and horses. Calibration was done using pressurized
dog eyes, without enucleation. The eyes were cannulated and pressurized with a
water column and pressurizing was controlled with a pressure sensor. The same
was done on the cat. The horse was calibrated the same way only enucleated
horse eyes were used.
TECHNOLOGY
The highly accurate, patented technology detects the motion of the probe as the
probe contacts the eye and bounces back.
The motion parameters of the probe vary according to eye pressure and are
used to calculate IOP.
ACCURACY
Excellent correlation with manometrically determined true IOP. Designed to take
and calculate the average of six measurements. Each measurement is taken in
a fraction of a second, thus reducing the influence of factors outside the animal’s
eye. The consistency involved with the automatic motion of the TonoVet probe,
helps to eliminate technique errors. If an error does take place due to poor
technique, the user is notified by an alarm and the procedure can be repeated.
LOCAL ANESTHESIA
Topical anesthesia is not necessary as the probe touch is so light as not to cause
any discomfort to the patient. Local anesthesia can be applied at the discretion of
the veterinary practitioner but it may alter the reading slightly.
CALIBRATION
The on-board software checks all parameters and is self-calibrating.
EASE-OF-USE
PREDISPOSITION TO GLAUCOMA
CANINE
Afghan, Akita, Alaskan Malamute, Basset Hound, Beagle, Border Collie, Boston
Terrier, Bouvier Des Flandres, Carin Terrier, Cardigan Welsh Corgi, Chihuahua,
Chow, Cocker Spaniel, Dachshund, Dalmatian, Dinmont Terrier, English Springer
Spaniel, Giant Schnauzer, Great Dane, Maltese, Manchester Terrier, Miniature
Pinscher, Norfolk Terrier, Norwegian Elkhound, Norwich Terrier, Pembroke
Welsh Corgi, Poodle, Saluki, Samoyed, Scottish Terrier, Sealyham Terrier, Shih
Tzu, Siberian Husky, Smooth-Coated Fox Terrier, Tibetan Terrier, Welsh
Spaniel, Welsh Terrier, West Highland White Terrier, Whippet, Wire-haired Fox
Terrier
FELINE
Persians, Siamese, some Domestic Short-hairs
Measuring the Intraocular Pressure
Secure the animal. Sedation may be required for fractious animals.
The use of local anesthesia is optional. Local anesthesia may reduce the
reading by 1-2 mm Hg.
The probe should be on a horizontal plane at a distance of about 4-8mm from the
cornea.
Press the measurement button to activate the probe to gently hit the center of the
cornea.
High IOP Measurements
>25 mm Hg in dogs
>31 mm Hg in cats
The rate of vision loss is proportional to the degree of IOP elevation; with
complete blindness resulting in days with marked increases in IOP, and over
weeks to months for mild increases.1 If the cornea is damaged, even though
the force applied from the TonoVet is slight, it is always best to refer the case to
a veterinary ophthalmologist specialist.
Reasons to Test for Intraocular Pressure
1) It is considered good medicine and marketing of professional services.
2) Pets are viewed by clients as family members and clients expect preventive
health care.
3) To establish an IOP baseline that is specific to individual animal patients.
4) If there is a history of glaucoma in the bloodline, IOP should be monitored on a
frequent basis.
5) IOP should be measured on the 42 breeds that are predisposed and/or any
cross breeds.
6) For use as preventive medicine tool for all geriatric wellness exams beginning
at age 6-7.
7) For use as a diagnostic tool for all cases of “red eye,” head trauma and eye
trauma.
Glaucoma is a vision impairing disorder due to high intraocular pressure. The
pressure that is exerted on the optic nerve and retina is one of the main causes
of blindness in dogs. Frequently it is clinically diagnosed late in the course of the
disease and the animal is normally either blind at this point or close to blind.
Their quality of life is poor and they are often in severe pain.
Clinical Symptoms
Early symptoms may consist of mild inflammation of the fine tissue that lines the
inner surface of the eyelids and clinically mimic conjunctivitis. Late symptoms,
associated with advanced glaucoma, consist of “red eye” and enlargement of the
eye. By this time the patient has experienced increased pain, tearing and
permanent loss of sight. That is why early detection is vital.
IOP should be measured on the 42 breeds of dogs predisposed to glaucoma,
and mixes of these breeds, on an annual basis and more frequently if a history of
glaucoma has been established in the bloodline.
Warranty: See the product registration card for details on the manufacturer’s two
year limited warranty.
Complete the warranty card and FAX to Tiolat Oy within 90 days of purchase
FAX to 011-358-9-728-6670
Miller PE: Glaucoma. In Bonagura JD (ed): Kirk’s Current Veterinary Therapy XII
Small Animal Practice. W.B. Saunders Co, Philadelphia, 1995, pp1265-1272.