Electroretinography ( ERG ) confirms the RP diagnosis by evaluating functional aspects associated with photoreceptor degeneration .
Electroretinography ( ERG ) can detect physiological abnormalities before the initial manifestation of symptoms .
Electroretinography ( ERG ) confirms the RP diagnosis by evaluating functional aspects associated with photoreceptor degeneration , and can detect physiological abnormalities before the initial manifestation of symptoms .