Table 7. Preoperative and postoperative VA values (logMAR) of the DON patients.

Group	No. of eyes	Preoperative	Postoperative	P	Difference
				0.181a
Medial-inferior	5	0.74±1.30	0.08±0.18	0.260b	-0.66±1.13
Medial-lateral	59	0.52±0.70	0.19±0.38	<0.001c	-0.33±0.53
Medial-lateral-inferior	25	0.78±0.79	0.18±0.42	<0.001c	-0.60±0.60
Lateral	2	0.18±0.02	0.00	0.310b	-0.17±0.01

VA: Visual acuity; DON: Dysthyroid optic neuropathy. ^aIntergroup comparisons of VA improvement, one-way ANOVA. According to the Bonferroni adjustment, P<0.025 was significant; ^bWilcoxon Signed Ranks test; ^cIntragroup comparisons of preoperative and postoperative VA values (logMAR), Paired samples t-test. According to the Bonferroni adjustment, P<0.00625 was significant.