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. 2025 Aug 18;17:255–268. doi: 10.2147/OPTO.S520285

Table 4.

Comparison of GHT Results for Pre-Perimetric Glaucoma and POAG Eyes, Both with and without the Use of the KIROS 1–400 Filter

ONL Borderline WNL Z- Value p- Value*
PPG NF 0 4 26 0.38 0.71
KIROS 0 3 27
POAG NF 26 12 12 −0.1 0.66
KIROS 30 6 14

Note: * Wilcoxon Signed Rank Test, Statistical significance was set at p<0.05.

Abbreviations: GHT, Glaucoma Hemifield Test; KIROS, The Yellow Kiros 1–400 filter; NF, No Filter; ONL, Outside Normal Limits; POAG, Primary Open Angle Glaucoma; PPG, Pre-perimetric Glaucoma; WNL, Within Normal Limits.