Table 2.

LoA Between Visits in 5-Minute Wetted Lengths (mm) of Unsheathed and Sheathed Schirmer Strips

Variable	Mean Diff	SD Diff	LoA
			Lower	Upper	Width
Unsheathed strips
Wetted length Δ (V1−V2)	0.74	5.05	−9.17	10.64	19.81
Sheathed strips
Wetted length Δ (V1−V2)	0.16	5.94	−11.49	11.81	23.30

V indicates visit.