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Macular Degeneration
(Age Related Macular Degeneration) |
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The retina is the thin
layer with light sensitive cells at the back of the eye for vision.
Centrally, at the very back of the eye, these light sensitive cells
are very closely packed, and this is the area which gives us our finely
detailed vision (it also accounts for most of our colour vision too,
as the rest of the retina has relatively few colour receptors (cones).
This area of closely packed receptors is known as the macula.
The Retina and macular degeneration
In macular disease (or macular degeneration as it is often known),
the cells in this region effectively start to 'wear out'. Being part
of the normal ageing process, it is often referred to as Age Related
Macular Degeneration (ARMD) As this central area deteriorates there
is a gradual drop in the ability to pick out fine detail. Only the
central area is affected; vision away from the centre remains unaffected.
Central vision becomes unclear, so fine detail like newsprint becomes
difficult and peoples' faces harder to recognise.
Treating ARMD
There are several experimental treatments, but so far no effective
solution to this condition. The remaining side vision is still normal,
so it is possible to continue with day to day living with only a few
modifications to lifestyle. A strong reading light close to text is
essential for those with ARMD.
Living with ARMD
To read the image of the text must fall not just on the 'faulty' area,
but on a larger area encompassing the unaffected retina. High magnification
is necessary which one or more of the following aids can achieve:
- High powered reading spectacles (the limitation
here is that you will need to be very close indeed to the print)
- Magnifying glasses, either stand mounted or
handheld
- Telescopic aids, handheld or mounted on spectacles
- Closed circuit television 'reader'
The Macular Disease Society
The Macular Disease Society is able to offer helpful advice and
support to those with this condition or their family, carers or
friends.
The helpline number to dial is 0845 241 2041 This helpline is
open to anyone - you don't need to be a member of the society
to call them. BT landline calls to 0845 numbers cost the same
as a local call, no matter where you are in the country: calls
made from mobiles usually cost more.
You can also contact them by email at help@maculardisease.org
or by regular post:
The Macular Disease Society
PO Box 1870
Andover
SP10 9AD
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