asthenopia is a topic covered in the Taber's Medical Dictionary.

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(as″thĕ-nō′pē-ă )

[Gr. asthenēs, weak + -opia]
Weakness or tiring of the eyes accompanied by pain, headache, and dim vision. Symptoms include pain in or around the eyes; headache, usually aggravated by using the eyes for close work; fatigue; vertigo; and reflex symptoms such as nausea, twitching of facial muscles, or migraine.
asthenopic (-nop′ik), adj.
SYN: SEE: eyestrain

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