Here are examples of the word/phrase "eyeballs" used in a sentence and paraphrased in a sentence...
Contrary to the name Cyclops, Scott Summers actually has two eyeballs.
Contrary to the name Cyclops, Scott Summers actually has two ocular balls.
Eyeballs without pupils have a scary appearance.
Ocular balls without pupils have a scary appearance.
One of the enemies in that game has more than two eyeballs.
One of the enemies in that game has more than two ocular balls.
Other Examples...