Arden index is related to –: (A) ERG (Electroretinogram), (B) EOG (Electroculogram), (C) VER (Visual Evoked response), (D) Perimetry
Answer is B. Arden index is related to Electrooculography
Interpretation of results:- Results of EOG are interpreted by finding out the Arden ratio as follows :

Arden ratio = Minimum height of light peak / Minimum height of dark trough  x 100

Normal curve values are 185 or above.
Subnormal curve values are less than 150.
Flat curve values are less than 125.