Headache caused by ocular refractive error(s), generally symptomatic after prolonged visual tasks.
- Any headache fulfilling criterion C
- Uncorrected or miscorrected refractive error(s) in one or both eyes
- Evidence of causation demonstrated by at least two of the following:
- headache has developed and/or significantly worsened in temporal relation to the onset or worsening of the refractive error(s)
- headache has significantly improved after correction of the refractive error(s)
- headache is aggravated by prolonged visual tasks at an angle or distance at which vision is impaired
- headache significantly improves when the visual task is discontinued
- Not better accounted for by another ICHD-3 diagnosis.
Most patients with 11.3.2 Headache attributed to refractive error will seek advice from an ophthalmologist.
While refractive error is much less commonly a cause of headache than is generally believed, there is some evidence for it in children, as well as a number of supportive cases in adults.