
Screw your eyes up
Visual Effort
Used when trying hard to see something that's not clear.

I screwed my eyes up to read the fine print.
Bright Light
Reflects a natural reaction to reduce glare from strong light.

He screwed his eyes up walking into the sunlight.
Strong Dislike
Indicates a visual response to something unpleasant.

She screwed her eyes up at the messy room.
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