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。
2
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。
3
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!"