Difference between revisions of "Asthenopia"

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|Authors=Ayesha.Shariff, Robert.F.Melendez
 
|Authors=Ayesha.Shariff, Robert.F.Melendez
|Category=Miscellaneous
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|Category=Miscellaneous, Pediatric Ophthalmology/Strabismus
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|Reviewer=K.David.Epley.SEC
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|Date reviewed=October 10, 2014
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= Disease Entity  =  
 
= Disease Entity  =  

Revision as of 14:42, October 10, 2014


Disease Entity

Asthenopia

Definition

Eyestrain; subjective symptoms of ocular fatigue, discomfort, lacrimation, and headaches arising from the use of eyes. Weakness or tiring of eyes accompanied by pain, headache, and dimness of vision.

Etiology

Accommodative asthenopia: strain of ciliary muscle and refractive error. Photogenous asthenopia: excessive or improper illumination. Muscular asthenopia: due to imbalance of the extraocular muscles Nervous asthenopia: due to functional or organize nervous disease


Symptoms

Pain in and around eyes; headache, usually aggravated by use of eyes for closework; fatigue; vertigo; reflex symptoms as nausea, twitching of facial muscles, migraine.


References

Taber's Cylocpeic Medical Dictionary Stedman's Medical Dictionary