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. 2017 Apr 28;96(17):e6782. doi: 10.1097/MD.0000000000006782

Figure 1.

Figure 1

Graph demonstrating the true intraocular pressure (IOPT) in eyes with myopic regression after laser in situ keratomileusis in the 2 treatment groups in different follow-up visits. Before treatment with eye drops (pretreatment), the difference in the mean IOPT was not statistically significant between the 2 groups (P = .715, independent samples t test). Three months after the twice-daily application of Timolol (during treatment), the mean IOPT gained 2.4-mm Hg (14.8%) reduction from the baseline (pretreatment) in Group 1 (from 16.2 pretreatment to 13.8 mm Hg during treatment, P = .000, n = 32, one-way ANOVA test) and gained 3.0 mm Hg lower than the mean IOPT in Group 2 (P = .000, independent samples t test). Two months after cessation of Timolol treatment (posttreatment), the mean IOPT in Group 1 increased significantly (from 13.80 mm Hg during treatment to 16.0 mm Hg posttreatment, P = .000, n = 32, one-way ANOVA test) and returned to its own pretreatment level (16.2 mm Hg, P = .711, n = 32, one-way ANOVA test). The difference of the mean IOPT posttreatment between the 2 groups was not statistically significant (P = .092, independent samples t test). ANOVA = analysis of variance.