It causes blindness or serious loss of vision.

这会引起失明或严重的视力衰退。

《柯林斯英汉双解大词典》

Studies show that for adults there is no danger, but children can develop loss of vision if they have glasses inappropriate for their eyes.

研究表明，这对成年人来说没有危险，但如果儿童戴了不适合他们眼睛的眼镜，可能会导致视力下降。

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We apologize for the loss of vision.

很抱歉没法显示画面。

《牛津词典》

Verteporfin, marketed by the drug firm Novartis as Visudyne, aims to stop the progressive loss of vision associated with wet AMD.

BBC: Blindness therapy row

The researchers urge any patient who has endured a sudden severe loss of vision, and has been prescribed Viagra or Cialis, to contact a doctor.

BBC: NEWS | Health | Sight warning on impotency drugs

Signs of a stroke include dizziness, sudden weakness or numbness, loss of speech or trouble talking, severe headaches and a reduction or loss of vision.

CNN: Study: Low cholesterol is not enough to prevent stroke