VCA Northwest Veterinary Specialists

Electroretinography

An electroretinogram (ERG) is an electrical test of the retina. Similar to the recording of the electrical wave and rhythm of the heart or electrocardiogram (ECG), the response of the retinal photoreceptors to light also has an electrical wave that can be recorded. The ERG is a test of the ability of the retinal photoreceptors, the rods and cones, to respond to light. ERG’s are performed when an ophthalmologist cannot visualize the retina on examination due obstruction, like cataracts, or when the retina can be visualized but looks normal or abnormal. Patients that are having cataract surgery will have an ERG to test the function of the retina so that after surgery we a confident that the patient will be visual. Patients that have sudden blindness and no retinal examination abnormalities may have a condition call Sudden Acquired Retinal Degeneration Syndrome (SARDs) or may have central blindness from a dysfunction of the brain or optic nerve. The diagnosis of SARDs is based no response of the photoreceptors on ERG or a flat ERG. If a patient is blind and the ERG and ophthalmic exam are normal then central blindness is the likely diagnosis. These are the most common ways that ophthalmologists used ERG in practice. Conditions like early progressive retinal atrophy (PRA) and specialized ERG’s can also be performed.

Departments

Ophthalmology
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General Practice

We have over 600 animal hospitals in 41 states and 4 Canadian provinces that are staffed by more than 3,000 fully-qualified, dedicated and compassionate veterinarians, with more than 400 being board-certified specialists.

The nationwide VCA family of general practice hospitals give your pet the very best in medical care, providing a full range of general medical and surgical services as well as specialized treatments such as wellness, spay/neuter, advanced diagnostic services (MRI/CT Scan), internal medicine, oncology, ophthalmology, dermatology, cardiology, neurology, boarding, and grooming. Services may vary by location.

Our family of pet hospitals stands out by delivering the greatest resources in order provide the highest quality care available for your pets. By maintaining the highest standards of pet health care available anywhere, we emphasize prevention as well as healing. We provide continuing education programs to our doctors and staff and promote the open exchange of professional knowledge and expertise. And finally, we have established a consistent program of procedures and techniques, proven to be the most effective in keeping pets healthy.

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Emergency Care

FOR PET MEDICAL EMERGENCIES, PLEASE CALL OUR HOSPITAL AT (503) 656-3999 OR TRANSPORT YOUR PET IMMEDIATELY TO OUR FACILITY (NO APPOINTMENT NEEDED)

VCA NORTHWEST VETERINARY SPECIALISTS IS LOCATED AT:

16756 S.E. 82nd DRIVE
CLACKAMAS, OR 97015
TEL: (503) 656-3999
Click here for DIRECTIONS

Pet Emergency Handbook for Download

VCA Northwest Veterinary Specialists is ready to provide emergency and critical care for your beloved companion around the clock every day of the year. Our Emergency Service is staffed by 4 board certified emergency and critical care specialists -- more than any other specialty hospital in the Pacific NW! Our ER/CC team works collaboratively with all of our specialty departments as needed to provide the most diverse and comprehensive specialty care in Portland. If your pet is having an emergency, please come immediately to our hospital - we are ALWAYS available, any time, day or night! You may speak with an ER/CC team member if you have questions/concerns by calling (503) 656-3999.

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