eye strain , also: eyestrain

His eyes strained for any sign of where he was.

Eye strain can be caused by a number of things.

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

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

But you would get eye strain looking for a fact witness.

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

Are you interested in better color representation or less eye strain?

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

His eyes strained to find them in the moonless dark.

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

He looked left and right, eyes straining in the greenish dark.

Weeks stepped to the doorway, his eyes straining into the night.

In fact, the academy's public information office says, children can focus up close without eye strain better than adults.

Unfortunately, though comprehensive on training, it said nothing about eye strain!

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

His eyes strained upwards as if to see through a fog.

Looked again to his left, eyes straining to pierce the gloom.

His eyes strained to see ahead into the blue.

That's already a lot to pay for eye strain and temporary hearing loss.

Eye strain is no walk in the park, though.

He let himself drop another several feet, eyes straining into the blackness below.

He waited, eyes strained against the dark, tense and listening.

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

My eyes strained at the tops of their sockets as I tried to look up.

His eyes strained to focus forward on her mouth.