The pupils of Neeva's eyes narrowed briefly to silver slits, then widened again.

The pupils of her eyes narrowed to vertical slits.

More light narrows people's pupils, which helps trap flash reflections inside the eye.

Her pupils narrowed to slits as she stared at the to-Ennien.

Her eyes were unreadable, the pupils narrowed to slits.

The pupils pulsed bigger than ever, then narrowed to pinpoints.

Her pupils narrowed to pinpricks, swallowed in a sea of blue.

The pupils were narrowing to normal size again.

The two teenagers gaped at him, and Kathleen's pupils narrowed to pinpoints.

His eyes were wild, the pupils narrowed into slits.