asthenopia


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Related to asthenopia: asthenophobia

asthenopia

[as·thə′nōp·ē·ə]
(medicine)
Weakness of the eye muscles or of visual acuity, sometimes accompanied by pain and headache.
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References in periodicals archive ?
26) The sustained demands on vergence and accommodation systems can frequently cause symptoms of asthenopia and headache which is likely to be further exacerbated by the use of other screens, such as smart phones and tablets.
In muscle imbalance, this might put a strain on the extraocular musculature that is richly supplied with pain-sensitive nerve endings and lead to ocular asthenopia and headache.
Asthenopia and blink rate under visual and cognitive loads.
Among ocular causes, asthenopia (or eye strain) was a major entity as 62(16.
Practitioners should be aware of the potential for vertical prismatic effect when selecting which toric designs to prescribe, particularly for monocular astigmats with preexisting binocular vision anomalies, and when managing complaints of asthenopia in monocular astigmats.
Prevalence of Asthenopia among computer Users in Enugu, Southeast Nigeria.
In a previous clinical trial assessing the effect on asthenopia (Kajita et al.
Results of well-controlled trials in human volunteers suggest that the carotenoid antioxidant astaxanthin can help prevent eyestrain, known technically as asthenopia.
4 Astigmatism varies with age,5 gender6 and ethnicity7 leading to abnormal retinal electrophysiology,8 meridonal amblyopia,9 asthenopia, eye-strain, migraine, myopia and blindness.
Mr Frackiewicz went on to explain why asthenopia and diplopia develop, with reference to Panum's fusion space and corresponding retinal area.
Convergence insufficiency (CI) is associated with a number of symptoms, including headaches, eye fatigue, and asthenopia, and is estimated to be prevalent in 2.
Researchers also suggest that astaxanthin supplementation may slow the progression of presbyopia and improve asthenopia (eye fatigue).