They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.
en.wikipedia.org People with hyperopia can experience blurred vision, asthenopia, accommodative disfunction, binocular disfunction, amblyopia, and strabismus, another condition that frequently causes blurry near vision.
en.wikipedia.org The major symptom is intermittent blurring of distance vision particularly noticeable after prolonged periods of near work, and symptoms of asthenopia.
en.wikipedia.org Asthenopia may be aggravated by close work and is thought by some to contribute to reading inefficiency.
en.wikipedia.org Convergence insufficiency is a common binocular vision disorder characterized by asthenopia, eye fatigue and discomfort.
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