Table 3.

Impression cytology scores. Several parameters were analyzed, but significant differences after three months of treatment were only found in: (a) cell-to-cell contact in the TT group; (b) cellularity in all of the groups; and (c) number of goblet cells in the TT and LT groups. NC: not counted.

	Travoprost+Timolol			Bimatoprost+Timolol			Latanoprost+Timolol
	Pre	Post	p-value	Pre	Post	p-value	Pre	Post	p-value
Keratinization	NC	NC		NC	NC		NC	NC
Cell-to-cell Contact (a)	0.136	0.591	0.0005	0.273	0.409	0.26	0.159	0.381	0.067
Inflammatory cells	NC	NC		NC	NC		NC	NC
Cellularity (b)	0.045	0.386	0.0008	0.273	0.705	0.008	0.114	0.545	0.0022
Goblet cells (C)	0.295	0.864	0.0012	0.568	0.932	0.0541	0.182	0.545	0.0186
N/C ratio	NC	NC		NC	NC		NC	NC