Blindness in Dogs Page 2


Diagnosis In-Depth

Veterinary care should include tests to establish a diagnosis and subsequent treatment. Diagnostic tests are essential in determining the exact cause of the blindness. Tests may include:

  • Complete physical examination and history
  • Complete ophthalmic examination, including direct and indirect ophthalmoscopy, pupillary light reflex testing, slit-lamp biomicroscopy, tonometry, Schirmer tear testing, navigation of the pet through an obstacle course, visual tracking and visual placing tests, and fluorescein staining of the cornea.
  • Complete neurologic examination
  • Other Diagnostic Tests

  • Complete blood count (CBC) and serum tests via blood samples
  • Blood pressure testing
  • Electroretinography to evaluate the electrical responses of the retina to light stimulation
  • Visually evoked response test to detect abnormality within the optic nerve or visual center of the brain
  • Specific serologic tests to evaluate the cause and identify any related problems
  • Corneal and conjunctival cell samples for cell analysis and specific tests to determine the presence of infection or inflammation
  • Specialized imaging tests of the eye and skull, such as ultrasound examinations, MRI (magnetic resonance imaging) or CT (computed tomography) scans
  • Cerebral spinal fluid tap to collect a sample of fluid surrounding the spinal cord and brain with a small needle
  • Treatment In-Depth

    Successful treatment depends on obtaining an accurate diagnosis.


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