Multifocal Electroretinogram (mfERG): The Laboratory Standard Values for Children Aged 6-12 Years Old

The aim of this study was to get the standard values of multifocal electroretinogram (mfERG) for the Electrophysiology Laboratory, Optometry Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM). The measurements involved were mean amplitude density of mfERG in both eyes and to compare between right and left eye; amplitude density response in each concentric rings and average of amplitude density of the retina. Sixteen normal subjects aged between 6-12 years old were involved in this study. Students t- test showed no significant difference in amplitude density between right and left eyes (OD=24.27±8.16 nV/deg², OS=24.12±8.57 nV/deg², p=0.937). Mean amplitude density for each concentric rings (R) in right eye (OD) were R1=56.41±24.85 nV/deg², R2=28.36±9.31 nV/deg², R3=17.50±5.33 nV/deg², R4=10.51±3.17 nV/deg² and R5=8.57±2.74 nV/deg². Mean amplitude density for each concentric rings (R) in left eye (OS) were R1=54.67±25.10 nV/deg², R2=28.89±10.52 nVV/deg², R3=18.23±5.98 nV/deg², R4=10.40±3.37 nV/deg² and R5=8.30±2.73 nV/deg². Mean amplitude density mfERG of the retina were OD = 24.27±8.16 nV/deg² and OS = 24.12±8.57 nV/deg². In conclusion, standard values for Multifocal Electroretinogram Laboratory, Program of Optometry Visual Science, UKM has been developed for 6-12 years old. We hope these values will serve as a guidance and reference for future research.