Electrodiagnostics can be a confusing, intimidating area in optometry. These tests (VEP and ERG) are often the key to diagnosis and prognosis of a number of inherited and acquired conditions. Although in the past most optometrists didn’t perform these tests on a regular basis, that is now changing with evolving technology, and this testing is now being incorporated into private practice optometry. Knowing when to refer, and most importantly, which test to refer for can be critical for a patient’s diagnosis and management. This interactive two-hour lecture will review these concepts in electrodiagnostics.