Strong’s Greek
G990 — blemma
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
βλέμμα
blemma — pronounced blem'-mah
from 991; vision (properly concrete; by implication, abstract):--seeing. see GREEK for 991
1 occurrence in the KJV.
2 Peter 2:8
(For that righteous man dwelling among them, in seeing and hearing, vexed his righteous soul from day to day with their unlawful deeds;)