Subthreshold micropulse laser therapy for early postoperative macular thickening following surgical removal of epiretinal membrane

Table 3 Changes in macular thickness in subgroups at baseline and follow-ups

	Group	Baseline	1-month follow-up	3-month follow-up	P value (Baseline vs. 1-month)	P value (Baseline vs. 3-month)
CST	SMPL	457.0 ± 70.1 (342 ~ 569)	438.8 ± 92.9 (273 ~ 635)	379.2 ± 75.3 (194 ~ 482)	0.711 ^a	0.004 ^a
CST	Observation	430.5 ± 65.8 (266 ~ 540)	404.0 ± 63.5 (309 ~ 543)	385.5 ± 65.3 (274 ~ 555)	0.339 ^a	0.049 ^a
AMT	SMPL	340.9 ± 39.0 (281 ~ 425)	324.4 ± 36.6 (265 ~ 398)	304.0 ± 33.8 (253 ~ 374)	0.269 ^a	0.002 ^a
AMT	Observation	330.2 ± 34.0 (280 ~ 405)	310.5 ± 29.6 (276 ~ 390)	296.2 ± 30.0 (267 ~ 386)	0.082 ^a	0.001 ^a

Data were presented as mean ± SD (range)
CST Central subfield thickness, AMT Average macular thickness, SMPL Subthreshold micropulse laser, SD Standard deviation
P^a, One-Way ANOVA test

ISSN: 1471-2415