The area under the receiver operating characteristics ( AUC ) for glaucoma diagnosis was determined from the average thickness of the total @ grids ( @ @ mm ) , central @ grids ( @ @ mm ) , and peripheral @ grids ( outside of the @ grids ) , and for each macular sublayer : macular RNFL ( mRNFL ) , ganglion cell layer plus inner plexiform layer ( GCL/IPL ) , and mRNFL plus GCL/IPL ( ganglion cell complex -LSB- GCC -RSB- ) .