In a small new study, people who smoked more than 20 cigarettes a day showed significant changes in their red-green and blue-yellow color vision and had greater difficulty seeing contrasts and colors than nonsmokers.
from WebMD Health webmd
In a small new study, people who smoked more than 20 cigarettes a day showed significant changes in their red-green and blue-yellow color vision and had greater difficulty seeing contrasts and colors than nonsmokers.
