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. 2020 Oct 30;27(3):145–149. doi: 10.4103/meajo.MEAJO_317_20

Table 2.

Comparison of preoperative and postoperative parameters

Parameter Preoperative Postoperative P
IOP (mmHg) Mean±SD 31.8±6.6 15.6±3.7 <0.001
Median (range) 30.0 (22.0-42.0) 16.0 (9.0-23.0) <0.001
C/D ratio Mean±SD 0.6±0.2 0.6±0.2 0.285
Median (range) 0.6 (0.3-0.9) 0.6 (0.3-0.9)
Medications Mean±SD 3.9±0.5 1.1±1.6 0.001
Median (range) 4.0 (2.0-4.0) 0 (0-4.0)

Wilcoxon signed-rank test; Paired t-test. IOP: Intraocular pressure, C/D: Cup-to-disc ratio, SD: Standard deviation