Table 4 Two‐tailed independent samples T test for equality of preattentive visual search and choice reaction time mean response times across glaucoma subtypes.

	Flicker	Displacement	Orientation	CRT
POAG vs LTG	T  =  1.110	T  =  1.113	T  =  1.844	T  =  0.167
	p = 0.276	p = 0.274	p = 0.075	p = 0.868
	dF  =  31	dF  =  31	dF  =  28.791	dF  =  31
POAG vs PXF	T  =  1.012	T  =  0.803	T  =  1.243	T  =  1.696
	p = 0.320	p = 0.429	p = 0.085	p = 0.101
	dF  =  28	dF  =  28	dF  =  27.631	dF  =  28
LTG vs PXF	T  =  0.026	T  =  −0.410	T  =  −0.706	T  =  2.096
	p = 0.980	p = 0.687	p = 0.490	p = 0.051
	dF  =  17	dF  =  17	dF  =  17	dF  =  17

CRT, choice reaction time; dF, degrees of freedom; LTG, low‐tension glaucoma; POAG, primary open angle glaucoma; PSI, perceptual search index; PXF, pseudoexfoliative glaucoma.