His eyes strained for any sign of where he was.

He wasn't sure what it was yet; his eyes strained to see in the dark.

He ran one step after another, eyes straining to see ahead.

The security chief thought for a moment, eyes straining at her station.

Her eyes strained through the night; but no horses were to be seen.

My injured eyes strained to gather the light to see her.

Ann's eyes strained against the darkness, and saw truth on the other's face.

His eyes strained to find them in the moonless dark.

His eyes strained to see ahead into the blue.

The wind swept the smoke forward and all eyes strained to see the impact.