SAFETY IN THE COMPUTER LAB Ms. Birdwell Technology Instructor.

SAFETY IN THE SAFETY IN THE COMPUTER LABCOMPUTER LABSAFETY IN THE SAFETY IN THE COMPUTER LABCOMPUTER LAB

Ms. Birdwell

Technology Instructor

Did you know????

• Kids spend an average of 1 – 3 hours a day on the computer!

Did you know????• According to the 2000 U.S. Census

– 51% of household have computers in the home!

That was 8 years ago – what do you think that

number is now?

Because of our increased computer usage – it is

important to understand that medical problems can result

from using the computer incorrectly.

There are three main medical conditions that

can occur from improper computer usage.

• Computer Vision Syndrome (CVS)• Repetitive Strain Injury (RSI)• Musculoskeletal Disorder (MSD)

What is Computer Vision Syndrome

(CVS)?

• CVS is a group of eye and vision problems that are a result of prolonged use on a computer.

What causes CVS?• Poor lighting• Glare on computer screen• Improper viewing distances• Poor seating posture• A combination of all the above

What are the symptoms of CVS?

• Eyestrain• Headaches• Blurry Vision• Dry Eyes• Neck and shoulder pain

Good News!• Most CVS symptoms are only

temporary and will go away after stopping computer use.

What is Repetitive Strain Injury (RSI)?

• RSI is a syndrome that affects muscles, tendons, and nerves in the hands, arms, and upper back.

What causes RSI?

• RSI is caused when the these areas are kept tense for very long periods of time, due to poor posture and/or repetitive motions.

What are the main types of RSI?

• Carpal Tunnel Syndrome• Cubital Tunnel Syndrome• Tendinitis

What are the warning signs of RSI?

• Pain or soreness in the neck, shoulders, upper back, hands, or wrists.

• Tingling, numbness, coldness or loss of sensation.

• Loss of grip strength.

Treatment for RSI

• Treatment usually requires significant changes to work habits and therapy treatment.

What is Musculoskeletal Disorder (MSD)?

• MSD’s affect the body’s muscles, joints, tendons, ligaments, and nerves.

What causes MSD?

• MDS’s take a long time to develop and are caused by the type of work or the work environment.

What are the signs of MSD?

• Signs are usually minor aches and pains.

Treatment for MSD• See a doctor for the appropriate

treatment

How can I protect myself?

• Good posture – keep feet flat on the floor, upper back should be naturally rounded, shoulder and arms relaxed at your side

How can I protect myself?

• Monitor – centered in front of you – eyes should be level about 20% from top of screen.

• Keyboard – positioned so you can reach the keys with elbows at your side.

• Mouse – at one side without having to reach or hunch.

How can I protect myself?

• Use proper typing technique– Keep your wrists straight– Let your hands float– Don’t strain your fingers

References• http://en.wikipedia.org/wiki/

Repetitive_strain_injury• http://www.stat.rice.edu/~cscott/

rsi.html• http://www.census.gov/prod/

2001pubs/p23-207.pdf