In the developed world cataracts hardly ever cause blindness, and mostly elderly people are affected.

在发达国家，白内障很难造成永久性的失明，并且大多数只是老年人才受影响。

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Diabetes leads to inadequate blood sugar control, which can damage the kidneys and cause blindness. It can also cause heart disease and strokes.

糖尿病会导致血糖控制不足，进而损害肾脏，导致失明，同时可以导致心脏病和中风。

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Soldiers particularly feared chemical gas attacks because they could cause blindness, blistering and a slow, painful death. The weapons are now outlawed by international agreement in most countries.

兵士们都格外畏惧化学气体攻击，因为它们可以致盲，引起水泡和痛苦的慢性死亡。如今大部分国家都签署了禁止化学武器的国际公约。

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The researchers disagree with the World Health Organization which says blindness and other vision problems are the leading cause.

VOA: special.2009.12.28

AMD is the leading cause of blindness among adults fifty and older.

VOA: special.2010.03.09

The venom can kill dogs and cats. It can also cause temporary blindness and excruciating pain in people if the poison gets into the eyes or mouth.

VOA: standard.2010.02.07

Researchers hope their findings will lead to treatments for diseased cilia, which can cause blindness, deafness and kidney disease in people.

BBC: Gene therapy restores sense of smell in mice

Looking at the sun with the naked eye can cause blindness.

CNN: Upcoming solar eclipse to project 'ring of fire'

Sight Savers International offers treatment such as cataract operations, to those whose sight can be saved, and educates healthcare workers about potential conditions which could cause blindness - such as vitamin A deficiency in childhood.

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