Table 2.
Comparison of SAP Indices and CS Values in Pre-Perimetric Glaucoma Eyes, Both with and without the Use of the KIROS 1–400 Filter
| Variable | No Filter | Kiros 1–400 | Z/ t Value | p-Value |
|---|---|---|---|---|
| MD (dB)† | −0.31 (0.75) | −0.20 (0.79) | −0.83 * | 0.42 ** |
| PSD (dB)† | 1.52 (0.23) | 1.48 (0.25) | 1.10 * | 0.29 ** |
| VFI (%)‡ | 99 (99 to 100) | 99 (99 to 100) | −0.89 *** | 0.42 **** |
| CS (logCS)† | 1.66 (0.08) | 1.69 (0.08) | 3.00 * | 0.01** |
Notes: †Results are presented as mean (SD); ‡Results are presented as median (IQR); * t-value; ** Paired Samples t-Test, Statistical significance was set at p<0.05; *** Z= value; **** Wilcoxon Signed Rank Test; Statistical significance was set at p< 0.05.
Abbreviations: CS, contrast sensitivity; IQR, inter-quartile range; MD, mean deviation; log, logarithm; PSD, pattern standard deviation; SAP, standard automated perimetry; SD, standard deviation; VFI, visual field index.