Step I
After every 20 minutes of looking into the computer screen, turn
your head away and try to look at any object placed at least 20
feet away. This changes the focal length of your eye, a must-do
for the tired eye.
Step II
Try and blink your eyes for 20 times in succession, to moist
it.
Step III
Walk 20 paces after every 20 minutes of sitting in one particular
posture. Helps blood circulation for the entire body.
- R.Jaishankar
Cataract
The lens of an eye is normally clear. If the lens becomes cloudy
or is opacified it is called a cataract. Cataracts may be present
at or shortly after birth in which case they are called congenital
cataracts. Adult cataract develops with advancing age, tends to
run in families, and the appearance may be accelerated by environmental
factors. Cataract may develop at any time throughout life following
an eye injury in which the capsule of the lens is damaged. Cataract
may also develop in response to metabolic diseases such as diabetes.
Other causes include trauma, radiation exposure, and excessive
exposure to ultraviolet light (sunlight). In many cases, the cause
of cataract is unknown.
Prevention
The primary prevention involves controlling associated diseases
and avoiding exposure to factors known to promote cataract formation.
Wearing sunglasses when you are outside during the day can reduce
the amount of UV light your eyes are exposed to. Some sunglasses
do not filter out the harmful UV.
Ocular Hypertension
Just like the blood, the eye has a pressure. Ocular hypertension
is higher than normal pressure of the eye. Glaucoma is a similar
but more serious condition, with associated vision loss and optic
nerve damage. Ocular hypertension causes no damage to vision or
the eye.
Treatment varies for ocular hypertension, but there is no cure.
Some eyecare practitioners simply monitor the pressures of the
eye when they're higher than normal. Other practitioners take
a more conservative route and prescribe eye drops to lower eye
pressures, the type of drug prescribed to those with glaucoma.
People with ocular hypertension are at increased risk for glaucoma,
though high pressures in the eye don't always cause damage