Table 2. Mean numbers of particular cell types in tears during the positive SIKCR and PBS control challenge (n=23).

	Before the challenge	After the challenge (min)
		0–10	20–30	60	90	120	180	240
Eosinophils
SIKCR	1	2	3.0*	4.0*	3.0*	0	0	0.5
PBS	0.5	0	0.5	0	0	0.5	0	0.5
Neutrophils
SIKCR	0	0	0	1	1	1	0	0
PBS	0	0	0	0	0	0	0	0
Mast cells
SIKCR	0	1.5*	1.5*	0	0	0	0	0
PBS	0	0	0.5	0	0	0	0	0
Conjunctival EC
SIKCR	0	0	0	1	2*	3*	0	0
PBS	0	0	0	0	0	0	0	0

Abbreviations: EC, epithelial cells; PBS, phosphate-buffered saline; SIKCR, secondary immediate keratoconjunctival response.

Significance with respect to the baseline (before the challenge): *P<0.05.