Smoking increases your risks for eye disease, including cataracts and age-related macular degeneration. And the more a person smokes, the higher the risks. The good news is that after people quit smoking, their risks for these eye diseases becomes almost as low as for people who never smoked.
Smoking also raises the risks for cardiovascular diseases that indirectly influence your eyes’ health. And tobacco smoke, including second-hand smoke, is an irritant that worsens dry eye.
Smoking increases the risk of serious vision loss in people with other eye diseases. And when women smoke during pregnancy they are more likely to give birth prematurely, putting their babies at higher risk for a potentially blinding disease called retinopathy of prematurity as well as other health problems.
One of the safest things to do for your vision? Never start smoking at all.