This is the 8168th most frequent Polish word.
oka
"Oka" in Polish means "of the eye" or "eye" in the genitive singular form.
Here, 'oka' is part of the instrumental plural form of 'okulary', not directly related to the eye.
Widzę świat przez różowe okulary.
I see the world through rose-colored glasses.
In this phrase, 'oka' is the genitive singular form to indicate 'glimpse' or 'glance', connected to the eye.
Rzucił okiem na swoją książkę.
He glanced at his book.
Here, 'oka' refers to the singular genitive form of 'oko', meaning 'eye'.