nineteen glaucoma patients , 17 ocular hypertensives , and 16 normal subjects underwent visual field testing on the humphrey field analyzer using two programs : full threshold ( thresholding of all test points with double-crossing technique ) and quantification of defects ( thresholding only points that deviated more than 6 db from a presumed normal retinal contour ) .
C0015392
ocular
C0035298
retinal