Evaluation of pre- and post-surgery reading ability in patients with epiretinal membrane: a prospective observational study

Table 4 Median values (IQR) of metamorphopsia score in each visit (n = 42)

	Baseline	3 Months Postoperative	6 Months Postoperative	12 Months Postoperative
MV	0.7 (0.4–1.6)	0.7 (0.4–1.6)	0.7 (0.3–1.2)	0.7 (0.5–0.9)
MH	0.8 (0.4–1.5)	0.6^† (0–1.1)	0.4^† (0–1.0)	0.5^†† (0–0.8)

Statistically significant differences in each measurement compared with the baseline were labeled. P values were calculated with the Wilcoxon signed-rank test and Bonferroni correction. ^†P < 0.05, ^††P < 0.001; IQR interquartile range, MV metamorphopsia of vertical line, MH metamorphopsia of horizontal line

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