Phrase: the dark eyeslits narrowing with greed till her eyes were green stones

[Haihao]

Hi,

I have come across another sentence I am not clear about:

[Yankee]

Hi Haihao

The pupils of the cat's eyes became extremely narrow vertical slits, so narrow that the pupils were barely visible, thus leaving only the green color of the cat's eyes visible.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Haihao]

Hi Amy,

Nice to have your instruction again! "Narrow vertical slits" explained everything. Thank you!

Haihao