← Return to list of services


The electrical response is a result of a retinal potential generated by light induced changes in the flux of transretinal ions, primarily sodium and potassium. ERG’s are obtained using gold plated electrodes embedded in a corneal contact lens which measures a summation of retinal activity at the corneal surface.
In our pets, the ERG is a routine pre-cataract surgery screening test to ensure that the retina is healthy prior to cataract removal helping to ensure a visual patient.

SARD (Sudden Acute Retinal Detachment) is an acute blinding disease in our pets that is diagnosed through a thorough ophthalmic examination, history and characteristic response on the ERG.