Eases screen fatigue
Eye Fatigue & Strain
In depth
The ache, the blur and the reluctance that arrive after a stretch of near work. It is the measurable consequence of accommodation held too long, and it is scored on validated strain instruments rather than asked about.
What drives it
Eases focusing strain increases it.
In 69 hyperopic patients performing a 20-minute near task with lenses set to leave different fractions of accommodative amplitude in reserve, asthenopia scores fell significantly once at least 35% of accommodation was held in reserve, so the greater the accommodative effort demanded, the more eye strain was reported. doi 10.5935/0034-7280.20150046
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.