。
It seems greed clouded his judgment.
Literal
Desire [by-に] eye [subject-が] dimmed-and judgment [subject-が] became-nothing [seems-らしい].
目がくらむ ('be dazzled / blinded [by],' literally 'eyes darken') is an idiom for losing one's senses or judgment to something. 欲に目がくらむ = 'blinded by greed.' らしい is the inferential suffix ('it seems / apparently'), based on outside evidence.