[Comparison of high-pass resolution perimetry and differential light sensitivity perimetry in glaucoma patients]

High-pass resolution perimetry (HRP) enables one to estimate the number of functioning retinal ganglion-cells. We investigated the correlation between HRP and Humphrey Field Analyzer 630 in 35 eyes of 23 primary open-angle glaucoma and 75 eyes of 46 normal-tension glaucoma patients. In a total of 110 eyes, both functional channels and global deviation of HRP were significantly correlated with MD (r = 0.74, p < 0.01: r = -0.71, p < 0.01, respectively). Local deviation of HRP was also significantly correlated with corrected pattern standard deviation (r = 0.77, p < 0.01). These correlations tended to be higher in eyes with more advanced field changes than in those with fewer changes. These results indicate that HRP may be useful for evaluation of glaucomatous visual field abnormalities. The observed discrepancies between the two different methods in early stage glaucoma may be attributable to differences in physiological factors tested in these methods.