In a group of 35 eyes with open angle glaucoma the visual field was examined by means of standard white perimetry and coloured blue-yellow perimetry. The results of the two types of examination of the central visual field were evaluated by statistical analysis where the assessed statistical parameters of the visual field of the investigated eyes with glaucoma we recompared. In the group a significant difference was found in the mean sensitivity of the retina (MS), mean loss of sensitivity (MD) and loss variance (LV) between white and coloured perimetry. The investigated indexes of the visual field in coloured perimetry differed significantly as compared with standard perimetry, i.e. the values ofmedian sensitivity were lower and those of the mean loss of sensitivity were higher. From the results of our investigation ensues that coloured perimetry was a more sensitive method for the detection of changes of the visual field in a group of eyes with open angle glaucoma than conventional white perimetry.

        Key words: open angle glaucoma - white perimetry - coloured perimetry - visual field indexes