Nicotine Affects the Ability to see Colors
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London, Feb 21 - People who smoke more than one pack of cigarettes a day are at greater risk of losing the ability to distinguish colors and vision in old age, according to research published in the Psychiatry Research journal. To that end scientists studied 71 healthy people who had smoked fewer than 15 cigarettes in their lifetime and 63 others who consume at least 20 daily.
At the time of the exams, participants in both groups were between the ages of 25 and 45 and had not been diagnosed with any vision problems.
The specialists used a special program that briefly displays striped or colored rectangles on a screen, as well as sets of geometric figures composed of a variety of circles of various colors.
They discovered significant differences in the vision of smokers and abstainers and that nicotine also affects the vision of discerning contrasts.
Steven Silverstein, co-author of Rutgers University in the United States, said that although the research does not provide a physiological explanation for the results, since nicotine damages the vascular system, it could damage blood vessels and neurons in the retina. (Prensa Latina)
