Scientists are warning that people who smoke are in danger of damaging their eyes. The scientists say smokers are two times more likely to lose their vision than non-smokers. Everyone knows that smoking can damage the lungs and heart, but not many people know it could damage the eyesight. The scientists are from the Association of Optometrists (AOP) in the United Kingdom. The AOP has started a campaign to raise awareness of the danger of smoking to the eyes. The campaign is called "Stub it out". The word "stub" means put out a cigarette by pushing the end against something hard; "stub it out" is saying, "stop smoking". The AOP said only one in five people thinks smoking can damage the eyes.

科学家警告说吸烟的人有损害眼睛的危险。科学家说，吸烟者比不吸烟者失去视力的可能性高两倍。每个人都知道吸烟会损害肺部和心脏，但很少有人知道吸烟会损害视力。来自英国验光师协会(AOP的科学家发起了一项运动，旨在提高人们对吸烟危害的认识。这项运动被称为“消灭它”。“烟蒂”一词的意思是把烟头往硬物上推，把烟灭了;“烟蒂灭了”是指“戒烟”。AOP说只有五分之一的人认为吸烟会损害眼睛。

The AOP explained why smoking is so harmful to the eyes. Cigarette smoke gets in the eyes and causes or worsens a number of different eye problems. Cigarette smoke contains toxic chemicals that can irritate and damage the eyes. Smoke contains tiny pieces of metals like lead and copper. These can get into the eyes and lead to cataracts - a condition that causes the eye lens to become cloudy. People with cataracts usually need an operation to restore their sight. Smoke can also increase the chance of worsening sight problems for people with diabetes. The AOP said smokers are also three times more likely to damage the eyes' muscles. The AOP has encouraged smokers to quit.

AOP解释了为什么吸烟对眼睛如此有害。香烟烟雾进入眼睛，导致或恶化许多不同的眼睛问题。香烟烟雾中含有有毒的化学物质，会刺激和伤害眼睛。烟中含有细小的金属，如铅和铜。这些物质会进入眼睛，导致白内障——一种导致晶状体混浊的疾病。白内障患者通常需要手术来恢复视力。吸烟也会增加糖尿病患者视力问题恶化的可能性。AOP说，吸烟者伤害眼睛肌肉的可能性也高出三倍。AOP鼓励吸烟者戒烟。