Weakness or fatigue of the eyes, usually accompanied by headache and dimming of vision.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "asthenopia" in a sentence
"The asthenopia which is almost constantly seen in such cases added to her trials, because reading had to be abandoned, and so at last, despite unusual vigor of character, she gave way to utter despair, and became at times emotional and morbid in her views of life."
"He is inclined to think that the effects of masturbation have been exaggerated, but he believes that it may produce such for the most part trivial complaints as photopsisæ, muscsæ, muscular asthenopia, possibly blepharospasm, and perhaps conjunctivitis."
"Vague neuralgic aches in the limbs, with constant weariness, asthenopia, anæmia, loss of appetite, and loss of flesh, followed."