Table 4.

Pearson correlation coefficient between SD-OCT and OCTA parameters in amnestic mild cognitive impairment and preperimetric glaucoma patients

	PPG		aMCI
	r	p	r	p
GCC — whole VD	0.435	0.015	0.268	0.042
GCC — inside disc VD	0.047	0.523	0.028	0.840
GCC — peripapillary VD	0.371	0.038	0.193	0.043
RNFL — whole VD	0.351	0.027	0.337	0.013
RNFL — inside disc VD	0.128	0.651	0.047	0.737
RNFL — peripapillary VD	0.372	0.012	0.325	0.016

RPC VD, radial peripapillary capillary plexus vessel density; PPG, preperimetric glaucoma; aMCI, amnestic mild cognitive impairment;

R, Pearson’s correlation coefficient. Statistical significance P < 0.05