Facts about Smoking Tobacco!
Do you smoke more than 20 cigarettes in a day? It may damage your vision Smoking more than 20 cigarettes a day may damage your vision by affecting blood vessels and neurons in the retina, a study warns. The study, published in the journal Psychiatry Research, included 71 healthy people who smoked fewer than 15 cigarettes in their lives, and 63 who smoked more than 20 cigarettes a day, were diagnosed with tobacco addiction and reported no attempts to stop. The participants were between the ages of 25 and 45 and had a normal or corrected-to-normal vision as measured by standard visual acuity charts, said researchers from the Rutgers University in the US. They looked at how participants discriminated contrast levels (subtle differences in shading) and colours while seated 59 inches from a 19-inch cathode-ray tube monitor that displayed stimuli while researche...
Comments
Post a Comment