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

Table 2 Median values (IQR) of different types of visual function measurements at each visit (n = 42)

	Baseline	3 Months Postoperative	6 Months Postoperative	12 Months Postoperative
BCVA (logMAR)	0.2 (0.1–0.4)	0.1^** (0–0.2)	0.1^** (0–0.2)	0.1^** (0–0.2)
RA (logMAR)	0.3 (0.2–0.4)	0.2^** (0.1–0.3)	0.2^** (0.1–0.3)	0.2^** (0.1–0.3)
CPS (logMAR)	0.8 (0.6–0.8)	0.6^** (0.4–0.7)	0.5^** (0.4–0.6)	0.5^** (0.3–0.6)
MRS (characters per minute)	343 (300–381)	354 (308–381)	350 (311–390)	357^* (310–402)

Statistically significant differences of each measurement compared with the values at baseline are labeled. The P value was calculated with the Wilcoxon signed-rank test and Bonferroni correction. ^*P < 0.05, ^**P < 0.001; IQR interquartile range, BCVA best-corrected visual acuity, logMAR logarithm of the minimal angle resolution, RA reading acuity, CPS critical print size, MRS maximum reading speed

ISSN: 1471-2415