Patients may report flashes of light, floaters, a curtain or shadow moving over the field of vision, and peripheral or central visual loss.

患者可能会看到闪光，漂浮物，帷幕或阴影遮挡住了视野，以及周边或中心视力丧失。

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The drug will have a boxed warning to alert health care professionals to this risk of a progressive loss of peripheral vision with potential decrease in visual acuity.

该药物被打上黑框，以警告卫生保健专家（该药物具有导致）进展性周边视觉丧失，伴随潜在的视敏度降低的风险。

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It does not affect peripheral vision, but the loss of clear central vision can rob a person of the ability to read, drive and recognise people's faces even without causing total blindness.

这种病不影响外周视力，但是明显的中心视力的丧失会剥夺患者阅读、驾驶的能力，甚至即使没有出现全盲的情况下也会是患者不能认出别人的脸。

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