Visual problems in older people are often not reported to medical services.

老年人的视力问题通常不会反映到医疗服务。

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Low levels of DHA have recently been associated with depression, memory loss, dementia and visual problems.

DHA含量低也会引起情绪低落，记忆力不好，痴呆和视觉问题。

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Similar research could help pinpoint other emotions, or help determine the brain defects in people with visual problems such as the inability to recognize faces.

类似的研究还有助于确定其他一些表情产生的机制，或者有助于搞清由于视觉问题造成的大脑缺陷，例如缺乏辨认面孔的能力。

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According to the London Hazards Centre, surveys of people working with a VDU for more than six hours a day have found that more than 70% experience visual problems.

BBC: Computer eye tests

Migraine with aura is a severe headache preceded by symptoms such as seeing flashing lights, temporary visual loss, speech problems or numbness of the face.

BBC: Epilepsy and migraine 'could have shared genetic link'

Visual art institutions still have problems knowing what do with this so it's often easier to put my work on the outside of buildings.

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