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asthenopia

asthenopia Asthenopia is visual weakness in which the eyes tire easily, especially because the muscles used for focusing or moving the eyes are prone to fatigue.

Asthenopia is visual weakness in which the eyes tire easily, especially because the muscles used for focusing or moving the eyes are prone to fatigue. It may arise from strain or weakness in those eye mechanisms, or as part of a more general bodily disorder.

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Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Asthenopia” (Asthenopia).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 3080439997a24e7c6c40f6041855e46b506dddf3e7233aab182df3138865ab0e

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “asthenopia.” Development preview.

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