Tuesday, May 31, 2011

World No Tobacco Day 2011





Online quiz
http://www.who.int/tobacco/wntd/2011/en/index.html


http://www.who.int/mediacentre/factsheets/fs339/en/index.html


Key facts

  • Tobacco kills up to half of its users.
  • The annual death toll of more than five million could rise to more than eight million by 2030 unless urgent action is taken to control the tobacco epidemic.
  • More than 80% of the world's one billion smokers live in low- and middle-income countries.
  • Total consumption of tobacco products is increasing globally, though it is decreasing in some high-income and upper middle-income countries.

Leading cause of death, illness and impoverishment

Tobacco use is one of the biggest public health threats the world has ever faced. It kills more than five million people a year – an average of one person every six seconds – and accounts for one in 10 adult deaths. Up to half of current users will eventually die of a tobacco-related disease.
More than 80% of the one billion smokers worldwide live in low- and middle-income countries, where the burden of tobacco-related illness and death is heaviest.
Tobacco users who die prematurely deprive their families of income, raise the cost of health care and hinder economic development.
In some countries, children from poor households are frequently employed in tobacco farming to provide family income. These children are especially vulnerable to "green tobacco sickness", which is caused by the nicotine that is absorbed through the skin from the handling of wet tobacco leaves.

Gradual killer

Because there is a lag of several years between when people start using tobacco and when their health suffers, the epidemic of tobacco-related disease and death has just begun.
  • Tobacco caused 100 million deaths in the 20th century. If current trends continue, it will cause up to one billion deaths in the 21st century.
  • Unchecked, tobacco-related deaths will increase to more than eight million per year by 2030. More than 80% of those deaths will be in low- and middle-income countries.

Surveillance is key

Good monitoring tracks the size and character of the epidemic and indicates how best to tailor policies. Two-thirds of countries – more than four in five of them low- and middle-income – do not have even minimal information about tobacco use.

Second-hand smoke kills

Second-hand smoke is the smoke that fills restaurants, offices or other enclosed spaces when people burn tobacco products such as cigarettes, bidis and water pipes. There is no safe level of second-hand tobacco smoke.
Every person should be able to breathe smoke-free air. Smoke-free laws protect the health of non-smokers, are popular, do not harm business and encourage smokers to quit.1
  • Only 5.4% of people are protected by comprehensive national smoke-free laws.
  • In 2008, the number of people protected from second-hand smoke increased by 74% to 362 million from 208 million in 2007.
  • Of the 100 most populous cities, 22 are smoke free.
  • Almost half of children regularly breathe air polluted by tobacco smoke.
  • Over 40% of children have at least one smoking parent.
  • Second-hand smoke causes 600 000 premature deaths per year.
  • In 2004, children accounted for 28% of the deaths attributable to second-hand smoke.
  • There are more than 4000 chemicals in tobacco smoke, of which at least 250 are known to be harmful and more than 50 are known to cause cancer.
  • In adults, second-hand smoke causes serious cardiovascular and respiratory diseases, including coronary heart disease and lung cancer. In infants, it causes sudden death. In pregnant women, it causes low birth weight.

Tobacco users need help to quit

Studies show that few people understand the specific health risks of tobacco use. For example, a 2009 survey in China revealed that only 37% of smokers knew that smoking causes coronary heart disease and only 17% knew that it causes stroke.2
Among smokers who are aware of the dangers of tobacco, most want to quit. Counselling and medication can more than double the chance that a smoker who tries to quit will succeed.
  • National comprehensive health-care services supporting cessation are available only in 17 countries, representing 8.2% of the world's population.
  • There is no cessation assistance in 29% of low-income countries and 8% of middle-income countries.

Picture warnings work

Hard-hitting anti-tobacco advertisements and graphic pack warnings – especially those that include pictures – reduce the number of children who begin smoking and increase the number of smokers who quit.
Studies carried out after the implementation of pictorial package warnings in Brazil, Canada, Singapore and Thailand consistently show that pictorial warnings significantly increase people's awareness of the harms of tobacco use.
  • Although pictures are more powerful deterrents than words on tobacco packaging warnings, only 19 countries, representing 24% of the world’s population, mandate pictorial warnings.
  • Just 15 countries, representing 7.6% of the world's population, meet the highest standards for pictorial warnings, which include that they be in colour and cover at least half of both the front and back of cigarette packs.

Ad bans lower consumption

Bans on tobacco advertising, promotion and sponsorship can reduce tobacco consumption.
  • Only 26 countries, representing 8.8% of the world’s population, have comprehensive national bans on tobacco advertising, promotion and sponsorship.
  • 27% of the world's population live in countries that do not ban free distribution of tobacco products.

Taxes discourage tobacco use

Tobacco taxes are the most effective way to reduce tobacco use, especially among young people and poor people. A tax increase that increases tobacco prices by 10% decreases tobacco consumption by about 4% in high-income countries and by up to 8% in low- and middle-income countries.
  • Only 21 countries, representing 6.2% of the world's population, have tobacco tax rates greater than 75% of the retail price.
  • In countries with available information, tobacco tax revenues are 173 times higher than spending on tobacco control.

WHO response

WHO is committed to fight the global tobacco epidemic. The WHO Framework Convention on Tobacco Control entered into force in February 2005. Since then, it has become one of the most widely embraced treaties in the history of the United Nations with more than 170 Parties covering 88% of the world's population. The WHO Framework Convention is WHO's most important tobacco control tool and a milestone in the promotion of public health. It is an evidence-based treaty that reaffirms the right of people to the highest standard of health, provides legal dimensions for international health cooperation and sets high standards for compliance.
In 2008, WHO introduced the MPOWER package of tobacco control measures to further counter the epidemic and to help countries to implement the WHO Framework Convention. The six MPOWER measures are:
  • Monitor tobacco use and prevention policies
  • Protect people from tobacco use
  • Offer help to quit tobacco use
  • Warn about the dangers of tobacco
  • Enforce bans on tobacco advertising, promotion and sponsorship
  • Raise taxes on tobacco.
For more information contact:
WHO Media centre
Telephone: +41 22 791 2222
E-mail: mediainquiries@who.int

1 Scollo M, Lal A, Hyland A, Glantz S (2003), Review of the quality of studies on the economic effects of smoke-free policies on the hospitality industry, Tobacco Control;12:13–20

Thursday, May 19, 2011

Recipe Exchange

Yesterday was the Recipe Test Taste & Exchange. It was a lot of fun. I would like to thank those who participated, by cooking or judging. Recipes are still being accepted for the Employee E-Cookbook, feel free to email them to me. 

Thursday, May 5, 2011

What is secondhand smoke?

American Cancer Society - The Official Sponsor of Birthdays.™http://www.cancer.org/Cancer/CancerCauses/TobaccoCancer/secondhand-smoke

Secondhand Smoke

What is secondhand smoke?

Secondhand smoke is also known as environmental tobacco smoke (ETS) or passive smoke. It is a mixture of 2 forms of smoke that come from burning tobacco: sidestream smoke (smoke that comes from the end of a lighted cigarette, pipe, or cigar) and mainstream smoke (smoke that is exhaled by a smoker). Even though we think of these as the same, they aren't. The sidestream smoke has higher concentrations of cancer-causing agents (carcinogens) than the mainstream smoke. And, it contains smaller particles than mainstream smoke, which make their way into the body's cells more easily.
When non-smokers are exposed to secondhand smoke it is called involuntary smoking or passive smoking.Non-smokers who breathe in secondhand smoke take in nicotine and other toxic chemicals just like smokers do. The more secondhand smoke you are exposed to, the higher the level of these harmful chemicals in your body.

Why is secondhand smoke a problem?

Secondhand smoke causes cancer

Secondhand smoke is classified as a "known human carcinogen" (cancer-causing agent) by the US Environmental Protection Agency (EPA), the US National Toxicology Program, and the International Agency for Research on Cancer (IARC), a branch of the World Health Organization.
Tobacco smoke contains over 4,000 chemical compounds. More than 60 of these are known or suspected to cause cancer.

Secondhand smoke causes other kinds of diseases and deaths

Secondhand smoke can cause harm in many ways. In the United States alone, each year it is responsible for:
  • An estimated 46,000 deaths from heart disease in non-smokers who live with smokers
  • About 3,400 lung cancer deaths in non-smoking adults
  • Other breathing problems in non-smokers, including coughing, mucus, chest discomfort, and reduced lung function
  • 50,000 to 300,000 lung infections (such as pneumonia and bronchitis) in children younger than 18 months of age, which result in 7,500 to 15,000 hospitalizations annually
  • Increases in the number and severity of asthma attacks in about 200,000 to 1 million children who have asthma
  • More than 750,000 middle ear infections in children
  • Pregnant women exposed to secondhand smoke are also at increased risk of having low birth- weight babies.

Secondhand smoke may be linked to breast cancer

Whether secondhand smoke increases the risk of breast cancer is an issue that is still being studied. Both mainstream and secondhand smoke contain about 20 chemicals that, in high concentrations, cause breast cancer in rodents. And we know that in humans, chemicals from tobacco smoke reach breast tissue and are found in breast milk.
But a link between secondhand smoke and breast cancer risk in human studies is still being debated. This is partly because breast cancer risk has not been shown to be increased in active smokers. One possible explanation for this is that tobacco smoke may have different effects on breast cancer risk in smokers and in those who are exposed to secondhand smoke.
A report from the California Environmental Protection Agency in 2005 concluded that the evidence regarding secondhand smoke and breast cancer is "consistent with a causal association" in younger women. This means that the secondhand smoke acts as if it could be a cause of breast cancer in these women. The 2006 US Surgeon General's report, The Health Consequences of Involuntary Exposure to Tobacco Smoke, found that there is "suggestive but not sufficient" evidence of a link at this point. In any case, women should be told that this possible link to breast cancer is yet another reason to avoid being around secondhand smoke.

Secondhand smoke kills children and adults who don't smoke, and makes others sick (Surgeon General's report)

The 2006 US Surgeon General's report reached some important conclusions:
  • Secondhand smoke causes premature death and disease in children and in adults who do not smoke.
  • Children exposed to secondhand smoke are at an increased risk of sudden infant death syndrome (SIDS), acute respiratory infections, ear problems, and more severe asthma. Smoking by parents causes breathing (respiratory) symptoms and slows lung growth in their children.
  • Secondhand smoke immediately affects the heart and blood circulation in a harmful way. Over a longer time it also causes heart disease and lung cancer.
  • The scientific evidence shows that there is no safe level of exposure to secondhand smoke.
  • Many millions of Americans, both children and adults, are still exposed to secondhand smoke in their homes and workplaces despite a great deal of progress in tobacco control.
  • The only way to fully protect non-smokers from exposure to secondhand smoke indoors is to prevent all smoking in that indoor space or building. Separating smokers from non-smokers, cleaning the air, and ventilating buildings cannot keep non-smokers from being exposed to secondhand smoke.

Where is secondhand smoke a problem?

You should be especially concerned about exposure to secondhand smoke in these 4 places:

At work

The workplace is a major source of secondhand smoke exposure for adults. Secondhand smoke meets the standard to be classified as a potential cancer-causing agent by the Occupational Safety and Health Administration (OSHA), the federal agency responsible for health and safety regulations in the workplace. The National Institute for Occupational Safety and Health (NIOSH), another federal agency, also recommends that secondhand smoke be considered a possible carcinogen in the workplace. Because there are no known safe levels, they recommend that exposures to secondhand smoke be reduced to the lowest possible levels.
Secondhand smoke in the workplace has been linked to an increased risk for heart disease and lung cancer among adult non-smokers. The Surgeon General has said that smoke-free workplace policies are the only way to do away with secondhand smoke exposure at work. Separating smokers from non-smokers, cleaning the air, and ventilating the building cannot prevent exposure if people still smoke inside the building. An extra bonus other than protecting non-smokers is that workplace smoking restrictions may also encourage smokers to quit.

In public places

Everyone can be exposed to secondhand smoke in public places, such as restaurants, shopping centers, public transportation, schools, and daycare centers.
Some businesses seem to be afraid to ban smoking, but there is no proof that going smoke-free is bad for business. Public places where children go are a special area of concern.

At home

Making your home smoke-free may be one of the most important things you can do for the health of your family. Any family member can develop health problems related to secondhand smoke.
Children are especially sensitive to secondhand smoke. Asthma, lung infections, and ear infections are more common in children who are around smokers. Some of these problems can be serious and even life-threatening. Others may seem like small problems, but they add up quickly: think of the expenses, doctor visits, medicines, lost school time, and often lost work time for the parent who must take the child to the doctor. In the United States, 21 million, or 35% of children live in homes where residents or visitors smoke in the home on a regular basis. About 50% to 75% of children in the United States have detectable levels of cotinine, the breakdown product of nicotine, in their blood.
Think about it: we spend more time at home than anywhere else. A smoke-free home protects your family, your guests, and even your pets.

In the car

Americans spend a great deal of time in cars, and if someone smokes there, hazardous levels of smoke can build up quickly. Again, this can be especially harmful to children.
In response to this fact, the US Environmental Protection Agency has a special program to encourage people to make their cars, as well as their homes, smoke-free. And some states have laws that ban smoking in the car if carrying passengers under the age of 17.

What about smoking odors?

There is no research in the medical literature as yet that shows cigarette odors cause cancer in people. Research does show that particles from secondhand tobacco smoke can settle onto hair, clothing, and other surfaces and remain there long after the smoke is gone. Some researchers call this "thirdhand" smoke. Researchers have now proven that these settled-out particles can form more cancer-causing compounds.
Though unknown, the cancer-causing effects would likely be very small compared with direct exposure to secondhand smoke, such as living in a house with a smoker. The compounds may be stirred up and inhaled with other house dust, but more may be absorbed through the skin or accidentally taken in through the mouth. This is why any risk the compounds pose may be larger for babies and children who play on the floor. No actual cancer risk has been measured, but this is an active area of research.

What can be done about secondhand smoke?

Local, state, and federal authorities can enact public policies to protect people from secondhand smoke and protect children from tobacco-caused diseases and addiction. Because there are no safe levels of secondhand smoke, it is important that any such policies be as strong as possible, and that they do not prevent action at other levels of government.
Many US local and state governments, and even federal governments in some other countries, have decided that protecting the health of employees and others in public places is of the utmost importance. Many have passed clean indoor air laws in recent years. Although the laws vary from place to place, they are becoming more common. Detailed information on smoking restrictions in each state is available from the American Lung Association at http://slati.lungusa.orgh.
To learn how you can become involved in helping to promote laws to reduce exposure to secondhand smoke, you can visit the American Cancer Society Cancer Action Network on the Web at http://www.acscan.org and see what's happening across the country. The Web site can also take you to your state's page so you can find out what is going on there. Or you can call ACS CAN at 1-888-NOW I CAN (1-888-669-4226).

Additional resources

More information from your American Cancer Society

We have selected some related information that may also be helpful for you. These materials may be viewed on our Web site or ordered from our toll-free number.
Guide to Quitting Smoking (also available in Spanish)
Questions About Smoking, Tobacco, and Health (also available in Spanish)
Smoking in the Workplace

Other organizations*

Along with the American Cancer Society, other sources of information and support include:
Environmental Protection Agency (EPA)
Telephone: 202-272-0167
Web site: www.epa.gov

    Has advice on how to protect children from secondhand smoke, a Smoke-free Homes Pledge, and other tobacco-related materials on the direct Web site, www.epa.gov/smokefree
American Heart Association & American Stroke Association
American Heart Association

Toll-free number: 1-800-242-8721 (1-800-AHA-USA-1)
Web site: www.americanheart.org

American Stroke Association
Toll-free number: 1-888-478-7653 (1-888-4-STROKE)
Web site: www.strokeassociation.org

American Lung Association
Telephone: 1-800-586-4872
Web site: www.lungusa.org

    Printed quit materials are available, some in Spanish. Also offers the tobacco cessation program "Freedom from Smoking Online" at www.ffsonline.org
Centers for Disease Control and Prevention
Office on Smoking and Health

Toll-free number: 1-800-232-4636 (1-800-CDC-INFO)
Web site: www.cdc.gov/tobacco
Free quit support line: 1-800-784-8669 (1-800-QUIT-NOW)
TTY: 1-800-332-8615

National Cancer Institute 
Toll-free number: 1-800-422-6237 (1-800-4-CANCER)
Web site: www.cancer.gov
Toll-free tobacco line: 1-877-448-7848
Tobacco quit line: 1-800-784-8669 (1-800-QUITNOW)
Direct tobacco Web site: www.smokefree.gov

    Quitting information, cessation guide, and counseling is offered, as well as information on state telephone-based quit programs
*Inclusion on this list does not imply endorsement by the American Cancer Society.
No matter who you are, we can help. Contact us anytime, day or night, for information and support. Call us at 1-800-227-2345 or visit www.cancer.org.

References

American Cancer Society. Cancer Facts & Figures 2009. Atlanta, Ga. 2009.
American Cancer Society. Cancer Facts & Figures 2010. Atlanta, Ga. 2010.
American Lung Association. Secondhand Smoke. Accessed at http://www.lungusa.org/stop-smoking/about-smoking/health-effects/secondhand-smoke.html on November 3, 2010.
Betts KS. Secondhand Suspicions: Breast Cancer and Passive Smoking. Environ Health Perspect.2007;115:A136–A143.
Borland R, Yong H-H, Siahpush M, et al. Support for and reported compliance with smoke-free restaurants and bars by smokers in four countries: findings from the International Tobacco Control (ITC) Four Country Survey.Tobacco Control. 2006;15(suppl_3):34–41.
California Environmental Protection Agency. Health Effects of Exposure to Environmental Tobacco Smoke. June 2005. Accessed at www.oehha.ca.gov/air/environmental_tobacco/pdf/app3partb2005.pdf on November 3, 2010.
Centers for Disease Control and Prevention, National Institute of Occupational Safety and Health. Current Intelligence Bulletin 54: Environmental Tobacco Smoke in the Workplace -- Lung Cancer and Other Health Effects. 1991. (Publication No. 91-108) Accessed at www.nasdonline.org/document/1194/d001030/environmental-tobacco-smoke-in-the-workplace-lung-cancer.html on November 3, 2010.
Environmental Protection Agency. Respiratory Health Effects of Passive Smoking: Lung Cancer and Other Disorders. Washington, DC: Environmental Protection Agency; 1992. (Report # EPA/600/6-90/006F) Accessed at: http://cfpub2.epa.gov/ncea/cfm/recordisplay.cfm?deid=2835 on November 3, 2010.
Dreyfuss JH. Thirdhand smoke identified as potent, enduring carcinogen. CA Cancer J Clin. 2010 Jul-Aug;60(4):203-4.
Mennella JA, Yourshaw LM, Morgan LK. Breastfeeding and smoking: short-term effects on infant feeding and sleep. Pediatrics. 2007;120:497–502.
Pirkle JL, Flegal KM, Bernert JT, et al. Exposure of the US population to environmental tobacco smoke: The Third National Health and Nutrition Examination Survey, 1988 to 1991. JAMA. 1996;275:1233–1240.
Schuster MA, Franke T, Pham CB. Smoking patterns of household members and visitors in homes with children in the United States. Arch Pediatr Adolesc Med. 2002;156:1094–1100.
Sleiman M, Gundel LA, Pankow JF, et al. Formation of carcinogens indoors by surface-mediated reactions of nicotine with nitrous acid, leading to potential thirdhand smoke hazards. Proc Natl Acad Sci U S A. 2010 Apr 13;107(15):6576-81.
U.S. Department of Health and Human Services. 11th Report on Carcinogens. Public Health Service -- National Toxicology Program. 2005. Accessed at: http://ntp.niehs.nih.gov/ntpweb/index.cfm?objectid=035E5806-F735-FE81-FF769DFE5509AF0A on November 2, 2010.
U.S. Department of Health and Human Services. The Health Consequences of Involuntary Exposure to Tobacco Smoke: A Report of the Surgeon General. Washington, DC: Department of Health and Human Services; 2006. Accessed at www.surgeongeneral.gov/library/secondhandsmoke/ on November 2, 2010..
Winickoff JP, Friebely J, Tanski SE, et al. Beliefs about the health effects of "thirdhand" smoke and home smoking bans. Pediatrics. 2009;123(1):e74–79.


Last Medical Review: 11/09/2010
Last Revised: 11/09/2010

Sunday, May 1, 2011

Healthy Vision Month


Save Your Vision Month: Healthy Vision at the Computer



http://www.aoa.org/x5072.xml
People who sit in front of a computer for long periods of time often encounter a variety of uncomfortable symptoms. Headaches, neck strain, backaches and wrist pain are common, but, sadly, the most prevalent symptoms of prolonged computer use-eye strain, blurred vision and dry eye-are often overlooked. In fact, eye and vision problems are the most frequently reported health care problems among computer users.

Computer Vision Syndrome

These symptoms contribute to computer vision syndrome, which the American Optometric Association defines as "the complex of eye and vision problems related to near work that are experienced during or related to computer use."
Sitting at a computer generally causes a person to look straight ahead for long stretches, work in a dry office or home environment, and to blink less often. These factors can lead to vision problems. Additionally, computer use requires specific vision skills, which add further demands to the visual system and contribute to eye and vision discomfort. These skills include:
  • Ocular motility — the ability of the eyes to move in various positions.
  • Accommodation — the ability of the eyes to focus clearly at various distances.
  • Vergence — The ability to move the eyes in (convergence) or out (divergence).

Effects of Working Environment

AOA Seal of Acceptance

Learn more about the
AOA Seal of Acceptance:
Computer work places various demands on the visual system. Each of these factors can play a part in computer vision syndrome.
  • Screen resolution — Better resolution offers greater clarity and usually leads to improved comfort. Adjust the resolution to the highest resolution your monitor will support. If the increased screen resolution makes items too small, try increasing the font size (DPI) to compensate.
  • Screen contrast — Adjust the contrast between the characters on the monitor and the background so the letters are easily read. Adjust the brightness of the monitor to an intensity that is comfortable to your eyes--not too bright and not too dim. Adjust both brightness and contrast for the best clarity.
  • Screen glare and reflections — Minimize reflected glare on your monitor by using window treatments, dimmer switches on lights and glare reduction filters. Look for glare reduction filters that have received the American Optometric Association Seal of Acceptance. Proper adjustment should eliminate any reflected images from the monitor screen. To reduce glare, eliminate bright light sources from your peripheral vision and position your monitor perpendicular to windows or other bright light sources.
  • Image refresh rates and flicker — A higher refresh rate for your monitor is best. The image on the screen should not flicker at all. (This is not a concern with LCDs.)
  • Working distances and angles — It is important to work at a distance that is comfortable for you and where the image on the screen is clear. Having to move your head to an awkward angle to see the screen clearly suggests that your prescription may need adjustment.
  • General eyeglass prescription may not be adequate — Computers are usually further and higher than a typical reading task. Glasses for most people wearing bifocals are not adjusted for this new distance or angle and therefore often are not adequate for using the computer.
  • Repetitive and stressful tasks — Difficult tasks are challenging. Don't forget to take occasional breaks and let the eyes look far away while resting.

Tips for Healthy, Comfortable Vision at the Computer

While decreasing time spent at a computer may not be an option, there are ways to maximize healthy vision for comfortable use of the computer.
  • Have a regular comprehensive eye exam to ensure your eyes are healthy and that you have the correct eyeglass or contact lens prescription (if necessary). Be certain to tell your optometrist about the computer work you do.
  • Wear glasses that are specifically designed to function comfortably at the computer. The lenses you wear for day-to-day activities may not be the best for working at the computer.

    • Rest the eyes
    • Blink forcefully
    • Use a humidifier
    • Instill artificial tears
After you have had a comprehensive eye examination, there are a number of things that you can do to arrange and use the elements of your workstation to eliminate or minimize discomfort.

Workstation Setup for Comfortable Computer Use

Is Your Work Station Properly Arranged?
Proper workstation arrangement
  • Feet should be flat on the floor (or on a slightly angled foot rest) with knees bent close to or greater than 90 degrees.
  • Chair seat should support the legs without excessive pressure on the back of the thighs.
  • The back should be snug against the seat to fit your spinal contour. Thigh-to-trunk angle should be 90 degrees or greater.
  • Wrists and hands should extend nearly straight from the elbow to the home row of the keyboard.
  • A commonly preferred work surface height for keyboard use is about 26" as opposed to the conventional 29" of most tables or desks.
  • Place the monitor 20"-26" from your eyes, depending on the size of the monitor and individual vision conditions.
  • The monitor and keyboard should be straight ahead.
  • The top of the monitor should be slightly below horizontal eye level. Tilt the top of the monitor away from you at a 10 degree to 20 degree angle. The center of the monitor should be 10 degrees to 20 degrees below your eyes. This is 4?-9? below your eyes at a distance of 24"
  • Keep the monitor free of fingerprints and dust. Both can reduce clarity.
  • Place document holders close to the screen within the same viewing distance. Keep the keyboard and monitor in line.
  • Adjust the keyboard tilt angle so that wrists are straight.

Healthy Computer Use

Although the visual system faces considerable challenges when using a computer, most issues can be solved. Remember that problems with the use of the computer cause needless discomfort and may rob productivity. Heeding the suggestions made here along with those made by your doctor of optometry, will enable you to use your computer comfortably and productively.