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with a convex lens. Every few years you will require
slightly stronger lens to allow for the decreasing ability to focus.
Floaters
A common complaint is of seeing tiny spots or specks that float across
the eye, especially in bright light. They are normal and usually harmless
but
may be a warning of impending eye problems. If they become more noticeable
or cause flashes of light, see your doctor.
Excessive tears
Excessive tears are usually a sign of increased sensitivity of the eyes
to
wind, light or temperature changes. This complaint is very common in
a
cold wind. It can be minimised by wearing glasses, especially sunglasses.
It could indicate blocked tear ducts (lacrimal ducts) or an eye infection.
Dry eyes
This is caused by a reduced production of tears by the tear glands.
It can
cause problems such as blurred vision, itching or burning. It is
easily corrected by using artificial tears.
Common eye diseases
Glaucoma
Glaucoma is caused by too much fluid pressure in the eye, this can lead
to blindness The rarer acute form (which causes sudden pain and visual
problems) and the common chronic form (which slowly develops without
early symptoms). All elderly patients should have eye tests on a regular
basis, maybe every 2 years, but it is more important to have any unusual
eye symptoms checked, if detected, it can be treated and blindness prevented.
Cataracts
Normally the lens within the eye is clear and allows light to pass through
it. A cataract is when the clear lens becomes cloudy or opaque and cuts
down the light entering the back of the eye. Apart from deterioration
of
vision, there are no other symptoms. Though this can occur at any age,
it is more common in diabetics and those taking cortisone tablets. It
is also hereditry. A modern lens implant (an artificial lens) can give
excellent results.
Retinal disorders
Disorders of the retina (the photosensitive area of the eye) can lead
to
varying degrees of blindness. Diabetes and other diseases can cause
retinal problems. Sometimes the retina can become detached and seriously
affect the eyesight. Retinal detachment can be treated successfully
if detected early.
Tips for improved sight
Light bulbs are better than fluorescent lights.
Regular blood pressure and diabetes check ups.
Eye examination every 2 years.
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