eyestrain

noun

fatigue or discomfort of the eyes caused by prolonged use or poor lighting conditions

Examples

Reading in dim light can cause eyestrain.
She developed eyestrain from staring at her computer screen all day.
The doctor recommended taking breaks to prevent eyestrain.
Proper lighting can help reduce eyestrain while studying.
His eyestrain improved after he got new glasses.
Many office workers experience eyestrain from prolonged screen time.