Scientists are warning that are in danger of damaging their eyes. Smokers are two more likely to lose their than non-smokers. Smoking damages the and heart. Not many people know it also damages the eyes. The Association of Optometrists (AOP) started a to tell people about the of smoking to the eyes. The campaign is called "Stub it out". The "stub" means put out a cigarette by pushing the against something; "stub it out" is saying, "stop smoking". The AOP said only in five people thinks smoking damages the .
The AOP explained why smoking harms the eyes. Cigarette gets in the eyes and causes different problems. The smoke contains that can damage the eyes. It also contains small of metal like lead. This can get into the eyes and lead to - a problem that causes the eyes to become . People with cataracts need an to restore their sight. Smoke can also worsen sight for people with . The AOP said smokers are also three times more to damage eye muscles. The AOP has said should quit.