The following recommendations are mainly concerned with
the way you use your eyes.
- Regularly change your focus onto a distant object every
five to ten minutes. This must be developed as a habit and need
only be of a couple of seconds duration. These frequent but
short breaks of eye focusing are more likely to occur when regular
focusing onto a distant object is made part of the work routine.
- If possible, plan your daily work so that any non-visually demanding
tasks are interspersed between VDU work to give the eyes several
minutes' break at least every hour.
-Position your computer screen so that your head is comfortably
supported. If your screen is too low your head will often be tilted
forwards leading to neck tension and headaches. The screen should
be positioned as far from you as possible without compromising
character recognition or necessitating any changes in posture
e.g. bending forward to see small characters on the screen.
The increased distance minimises eyestrain and also exposure
to any possible radiation. The screen must also be positioned
so that the user can look above the screen and see objects that
are atleast a few metres away without necessitating
a head turn to achieve this. Proper positioning of the screen
is also needed to minimise reflections or glare from the
- Remember to blink regularly. One should develop the habit
of blinking fully (complete eye lid closure) every five seconds.
This is useful in cleansing and prevents drying of the eyes.
- In cases of continuous, prolonged VDU work, or when the above
recommendations have not been practiced, more effective resting
of the eyes can be achieved by closing your eyes and covering
them with the palm of your hands for about half a minute. During
this time, try to relax other parts of the body as well. Rolling
of the eyes in a clockwise and then anti-clockwise direction
with the eyes closed will also help to relax them by loosening the
Refer to recommendations in Part (I) (C) for importance of regular
eye examinations and an explanation of the benefits of "performance"
lenses to prevent eyestrain. These lenses can be worn
by most normal-sighted people who engage in prolonged close work
and can be specially designed for computer use.