optical [Adjective] + illusion [Noun]

Strength Strength Dispersion
A:
26
CHISQ:
6,323.96
AWT:
3,654,201
TTEST:
5.08
G2:
246.54
FAWT:
14.88
MI:
7.94
LOGLOG:
37.31
JD:
0.77
MI3:
17.34
DICE:
2.49
RANGE: