computer related health hazards

Computer Related Health Hazards: 

Computer Related Health Hazards PRESENTED BY:- VISHAL CHATURANI B Sc engg . d,ayalbagh educational institue

Topics Covered: 

Topics Covered Repetitive Strain Injuries Carpal Tunnel Syndrome Eye Strains Internet Addiction Stress and Depression Ergonomics

Repetitive Strain Injuries (RSI): 

Repetitive Strain Injuries (RSI)

Others names for RSI: 

Others names for RSI Work related upper limb disorder(WHO) Occupational overuse syndrome(NZ) Cumulative trauma disorder(USA) Computer related injuries(CSI)

RSI Facts and figures: 

RSI Facts and figures OSHA estimates over 7000,000 RSI’s occur every year. 15-20% of computers users throughout the world may have estimated RSI . 3 out of 5 office workers in Sweden have symptoms of RSI. Every day 6 people in uk have to leave their job due to RSI

DID YOU KNOW?: 

DID YOU KNOW? 75% of Indian computers users report pain/numbness Over 30 young Indians IT/ITES professionals have lost their jobs because of advanced RSI 55% of Indian computer users got injured within a year of starting their first job

You are a computer athlete: 

You are a computer athlete A dangerous occupation: This is also dangerous: As a typical computer user, you “walk” several miles each day on your fingertips (250 keystrokes / min) * (2 in / keystroke) * 4 hours = 2 miles

What is RSI?: 

What is RSI? Repetitive Strain Injury (RSI) is pain or nerve problems in upper extremity (hands, arms, or shoulders) can also include neck and back is a soft tissue disease (muscles and nerves) is an overuse syndrome Symptoms : tightness, discomfort, stiffness, soreness or burning in the hands, wrists, fingers, forearms, or elbow. pain that wakes you up at night; tingling, coldness or numbness in the hands, and loss of strength and coordination in the hands

PowerPoint Presentation: 

Repetition Of Tasks Too Much Stress Muscles Tendons Nerves Other soft tissues RSI

Carpal Tunnel Syndrome: 

Carpal Tunnel Syndrome (CTS) is caused when median nerves that controls the functioning of the hands and fingers become compressed inside a “tunnel” made up of the wrist bones, or carpals. Median Nerve Compressed

Symptoms of CTS injury : 

Symptoms of CTS injury Pain and discomfort Numbness and coldness in the hands Loss of strength and/or joint movement Swelling and stiffness in the hands The need to massage your hands, wrists and arms Heaviness & even disturbs sleep.

Reasons for CTS injury : 

Reasons for CTS injury Long hours in the keyboard, especially those that type more than four hours Lack of circulation in the muscles that prevents nutrients and oxygen to reach the tissues Inadequate rest and breaks Poor posture including the sitting, placement of hands on the keyboard and proper height of the keyboard Poor diet (lack of vitamins)

CTS Treatment : 

CTS Treatment Rest, rest and more rest Use of a wrist brace or splint Take medication like ibuprofen Take vitamins Keep hands warm, take breaks, exercise your hands and arms Use your knowledge of ergonomics Surgery should be your last retreat if everything else fails

Eye Strains: 

Eye Strains Eye strain is the single largest complaint of computer users causing soreness, irritation, blurred vision, redness and dryness of the eyes.

Reasons for this injury : 

Reasons for this injury Bad monitor resolution, flickering, or glare at the monitor Poor lighting conditions in the computer room distance between eye and screen readability of the screen Electromagnetic radiation emitted by the CRT (UVA) Staring at anything for a long period of time. Loss of negative ions in the atmosphere due to electrostatic charges on the face of the CRT

Symptoms of Eye Strains: 

Symptoms of Eye Strains Impaired vision, double vision and blurred vision Difficulty in looking at one point for a period of time Itchy dry eyes and discomfort while looking at the VDT Headaches Eye fatigue that can have serious impact later in life watering and other sensations are eye problems associated with computer maneuverings

Eye Strain Treatment: 

Eye Strain Treatment Use your knowledge of ergonomics Take breaks when you feel strained Use your laptop when possible because the monitor emits less radiation Use a monitor that holds a steady image without flickering. Use the zooming function to improve readability The screen should be kept 18-30 inches from ones eyes or about an arm’s length.

Internet Addiction: 

Internet Addiction Use Internet every day without days off Loosing track of time while surfing the Net. Denial of high usage. 51 % of Internet addicts suffer severe job impairment 58 % get addicted within the first 12 months of Internet usage Web addicts display similar brain changes to those addicted to drugs or alcohol.

Discomgoogolation : 

Discomgoogolation It is defined as feeling of distress or anxiety when unable to gain immediate information access. Derived from “discombobulate” which means illusion and ”Google” The internet users suffer from distress or anxiety when unable to get connected to the Internet . They felt frustrated and confused whilst unable to get online . Some had higher stress levels.

Prevention : 

Use internet only when necessary. Try to have account on only one of the social networking sites. Indulge in other hobbies. Take care of time while chatting. If still suffered by online mania , consult psychologist. There is even an anti-facebook blog called sickfacebook.com to discuss issues . Prevention

Stress and Depression: 

Stress and Depression Computer operators experience more stress than any other occupational group the National Institute of Occupational Safety and Health has studied

Other Computer Related Health Hazards: 

Other Computer Related Health Hazards Back problems (pain) caused from the efforts of the muscle to hold your posture for long periods of time Skin rashes that are caused from the static fields in front of the screen causing ions and pollutants in the air to become positively charged and attach themselves to your negatively charged skin (especially in low humidity) Abnormal reproductive outcomes due to electromagnetic radiation's affects on biological functions and biochemical processes inside our cells Cancer and leukemia (?) Skin aging (?)

Advantages of RSI: 

Advantages of RSI

ERGONOMICS : 

ERGONOMICS Derived from the Greek words ergon (work) and nomos (natural laws). Combined, it means THE LAWS OF WORK.

ERGONOMICS IN EVERDAY APPLICATIONS: 

ERGONOMICS IN EVERDAY APPLICATIONS

Ergonomic While Keyboarding. : 

Ergonomic While Keyboarding. Letting wrists floating in the air is the best position or behavior of wrist while keyboarding The most common mistake people make is to contort their hands to perform key combinations such as a shifted letter, Ctrl and Alt keys, the behaviors leading to experience numbness, tingling or loss of feeling in the little finger. It is recommended to use one hand to hit the letter key and the index finger of the opposite hand to hit the shift, Ctrl or Alt key to avoid strains caused by twisting hands while keyboarding

WORKSTATION: 

WORKSTATION

PowerPoint Presentation: 

1. The top of your monitor should be at eye level , and directly centered in front of you. It should be about an arm's length in front of you. 2. Your desk surface should be at roughly belly button level . When your arms are placed on the desk, your elbows should be at a ~90 degree angle, just below the desk surface. The armrests of your chair should be at nearly the same level as the desk surface to support your elbows. The required adjustability to achieve an ergonomically correct computer workstation

PowerPoint Presentation: 

3. Your feet should be flat on the floor with your knees at a ~90 degree angle . Your seat should not be pressing into the back of your knees; if necessary, tilt it slightly forward to alleviate any knee pressure. Sit fully back in your chair, with your back and shoulders straight and supported by the back of the chair. 4. When typing, your wrists should be in line with your forearms and not bent up, down, or to the side. Your keyboard should be directly centered in front of you. Other frequently used items should be nearby, within arm's reach.

A few ergonomic advice: 

A few ergonomic advice Use a chair that has full support of your back, is adjustable, and has a footrest and armrest Place your feet firmly on the floor Use an ergonomic keyboard that is angled or can split to enjoy a more natural typing position Use a wrist rest that is comfortable Place your hands straight when typing, the angle of your forearm and upper arm should be 90 degrees Sit 24 to 28 inches away from your monitor Place the monitor 15-30 degrees below your straight-ahead line of sight Keep your body away from the sides and backs of monitors to reduce the exposure of radiation Avoid glare on your monitor (do not have strong sources of light in your back) and use screens that minimize glare Use the proper light in your work environment that is compatible with the monitor frequency

PowerPoint Presentation: 

R S I May be worse than you think Prevent It before it causes permanent DAMAGE

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THANK YOU