Scientists in Canada found one beer a day reduced the risk of cataracts – a major cause of blindness in old age.

加拿大的科学家发现每天喝一杯啤酒可以降低得白内障——造成老年失明的主要原因——的风险。

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World Sight Day is an annual event that focuses attention on the global problem of blindness and visual impairment.

世界视觉日是一个年度事件，将注意力集中于全球盲症和视力损害问题。

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Milton has his hero, Samson, bewailing the fact of his blindness: "o dark, dark, dark, amid the blaze of noon irrecoverably dark, total eclipse without all hope of day!"

弥尔顿描写到自己崇拜的英雄参孙悲叹自己失明：，黑暗，黑暗，黑暗，在正午的光辉中，无法改变的黑暗，黯然的没有一点希望。

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