The optic nerves were sectioned and the eyes rotated 180 degrees.

This is not the same as the axes that the eye actually rotates about.

Here the eye simply rotates about approximately the same axis as the head (which could even be a pure torsional rotation).

Undiscouraged, he kept his eyes closed, thought of the Arcturian station, and carefully rotated the de- vice in a circle, on the sand.

"You must understand the background to all this," he said, and his natural eye rotated so he could watch me.

His eyes were rotating in his head.

"Fascinating," Spock murmured, watching how the alien's eyes rotated on their stalks.

The eyes could rotate in any direction, focus forward or backward as required, allowing the dragon to see everything around it.

In addition, his eyes can rotate independently of one another, allowing him to look in two directions at once.

I saw that his laterally located eyes rotated forward.