Changes of Lacrimal Puncta by Anterior Segment Optical Coherence Tomography after Topical Combined Antibiotic and Steroid Treatment in Cases of Inflammatory Punctual Stenosis

Table 2

Outer punctual diameter and length between the outer and inner punctum of both groups during follow-up period of six weeks.

		EG1, n = 22			EG2, n = 22			value
		Mean	±	SD	Mean	±	SD
Outer punctual diameter	Before treatment	228 um	±	113	241 um	±	115	0.5
	Two week after treatment	372 um	±	97	236 um	±	109	<0.0001
	Four weeks after treatment	396 um	±	87	243 um	±	110	<0.0001
	Six weeks after treatment	373 um	±	92	240 um	±	109	<0.0002
P1 value		<0.0001			0.9
Length between outer and inner punctum	Before treatment	129 um	±	73	137 um	±	72	0.6
	Two weeks after treatment	211 um	±	108	131 um	±	69	<0.0006
	Four weeks after treatment	259 um	±	109	139 um	±	70	<0.0001
	Six weeks after treatment	217 um	±	107	136 um	±	71	<0.0008
P2 value		<0.0002			0.8

^∗P value calculates the significant difference of the presented parameters between EG1 and EG2 and was calculated by the independent sample t-test. P1 value calculates the significant difference in the outer punctual diameter in the EG1 and EG2 group before treatment and six weeks after treatment and was calculated by the paired sample t-test. P2 value calculates the significant difference in the length between the outer and inner punctum in the EG1 and EG2 group before treatment and six weeks after treatment and was calculated by the paired sample t-test.