yǎn​lì

discernment

眼力 yǎn​lì
discernment noun
the ability to make discerning judgments or identify quality

He has a keen eye and could tell at a glance that the painting was authentic.

eyesight noun
strength or quality of physical vision

Grandma is getting old, and her eyesight isn't what it used to be.

Frequency

Movie subtitles
1.97 per million appears in 1% of films
Written text
2.50 per million

Sources

Definitions
CC-CEDICT