2007-01-11 13:04:34 · 14 answers · asked by Anonymous in Health ➔ Diseases & Conditions ➔ Respiratory Diseases
I found this online:
Cataracts, the world's leading cause of blindness, cause visual impairment in more than 3 million people in the U.S. and 50 million globally. Data suggest that smoking causes 20 percent of all US cataract cases.
A cataract is a clouding of the natural lens, the part of the eye responsible for focusing light and producing clear, sharp images. As the lens becomes more opaque, seeing out of your eye becomes more difficult. Blindness could be the end result of cataracts. A surgical lens transplant will then be required to restore eyesight.
Research confirms that smoking boosts a person's risk of developing cataracts. Starting in 1982, epidemiologist William G. Christen of the Harvard Medical School in Boston and his team monitored 17,824 male physicians who showed no sign of cataracts at the outset of the study.
Over the next five years the team monitored the volunteers, identifying 557 cases of cataracts, the Science News reported. The men who reportedly smoked at least a pack (20 cigarettes) per day at the study's start ran a significantly greater risk of cataracts than did men who had never smoked. Smokers faced an estimated 200 percent increased risk of developing a posterior subcapsular cataract and an estimated 100 percent increased risk of nuclear sclerosis cataract. (A posterior subcapsular cataract is a visually disabling condition that begins at the back of the lens, while a nuclear sclerosis cataract, a less serious form, begins in the nucleus, the center of the lens.)
Susan E. Hankinson — also at the Harvard Medical School — and her colleagues describe a similar study of more than 50,800 women who participated in the Nurses' Health Study, a trial of registered nurses that began in 1976.
After monitoring the women for eight years, the researchers identified 493 cases of cataracts. Compared with non-smokers, women smoking at least 30 cigarettes per day during the study had about a 60 percent greater risk of developing cataracts serious enough to require surgery.
Free radicals are responsible for most cataracts. Recent research shows that smokers have lower blood levels of antioxidants compared to non-smokers, substances that protect cells from damage caused by free radicals. Compared with non-smokers, smokers may thus sustain greater free-radical damage to the lens.
Quit smoking today!
2007-01-11 13:08:38 · answer #1 · answered by crazymaysie 3 · 1⤊ 0⤋
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2014-08-30 14:30:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The restriction of capillary flow by smoking would lessen the circulation to any part of your body, including the eyes, and therefore hinder the full capacity of function in any place these capillaries may be. There are few other issues that call for the answer of your question, but chew on that one reason alone awhile, as it is sufficient enough to find reason to quit smoking.
2007-01-11 13:13:08 · answer #4 · answered by Garret Tripp 3 · 1⤊ 0⤋
Smoking affects everypart of your body. It causes premature aging of the skin, creases in the lips, plaque build-up in the arteries, tooth decay, baaad breath, yellow fingernails, and yellowing of the hair. If the hair is darker, it doesn't always show up, but the shine fades. If you look in the whites of the eyes of smokers, you will notice they tend to often be bloodshot, and the sclera is yellowish. The longer you smoke, the darker they get.
Smoking constricts the blood flow to the eyes, and thus, affects the eyesight.
Hope this answers your question, and if you smoke, maybe it made you think. Good luck to you.
2007-01-11 13:12:33 · answer #5 · answered by jmiller 5 · 0⤊ 1⤋
Humm thats a good question. I actually have no clue. It makes my eyes burn bad...but ive been in the casino buisness for almost 10 years with smoke and my eyesight is really bad, lol it makes me wonder...
2007-01-11 13:25:37 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Yes
2007-01-11 13:07:12 · answer #7 · answered by Help me 3 · 0⤊ 0⤋
A study involving Hispanics, smoking and macular degeneration says yes. Smoking is BAD... very, very BAD.
2007-01-11 13:08:21 · answer #8 · answered by Paul H 6 · 0⤊ 0⤋
Smokers have a significantly increased risk of glaucoma, a degenerative eye condition that will eventually cause blindness.
2007-01-11 13:09:32 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Smoking what?
Cigarettes? Not drastically.
Freebasing, on the other hand, in massive amounts helps diminish your five senses till you start to lose them one by one.
2007-01-11 13:08:24 · answer #10 · answered by Anonymous · 0⤊ 0⤋