Cigarette smoke contains toxic chemicals that can irritate and harm the eyes. Additionally, Smoking can make diabetes-related sight problems worse by damaging blood vessels at the back of the eye. Smokers are also around three times more likely to get age-related macular degeneration - a condition affecting a person's central vision, meaning that they lose their ability to see fine details. Moreover, they are 16 times more likely than non-smokers to develop sudden loss of vision caused by optic neuropathy, where the blood supply to the eye becomes blocked.
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