Ophthalmologic Psychophysical Tests Support OCT Findings in Mild Alzheimer’s Disease

Table 4

Pearson’s correlation between psychophysical tests and Mini Mental State Examination.

Psychophysical test		value
Visual acuity	0.457	0.001
Contrast sensitivity
3 cpds	0.366	0.011
6 cpds	0.516	0.001
12 cpds	0.451	0.001
18 cpds	0.468	0.001
Rue 28-hue
Number of errors	−0.271	0.063
Tritan unspecific errors	−0.329	0.023
PDT
Successful number of sheets	0.536	0.001

, Pearson’s test (AD: Alzheimer’s disease; cpds: cycles per degree; PDT: perception digital test).