Trabeculectomy With Antimetabolite Agents for Normal Tension Glaucoma: A Systematic Review and Meta-Analysis.

Although the differences of MD slope between the baseline MD groups (baseline MD under –12 dB: 0.40 dB/year and baseline MD over –12 dB: 0.69 dB/year) did not reach statistical significance (test for subgroup differences: P = 0.08) probably due to the suboptimal statistical power, our results may suggest a trend of patients with more favorable baseline VF conditions demonstrating more surgery-related improvement in MD slopes.

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