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Malfunctions
Eye Malfunctions
Age-related Macular Degeneration
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Skye Matthews
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What is the most common cause of severe loss of eyesight among people 50 and older?
Age-related macular degeneration
(AMD)
How does age-related macular degeneration (AMD) affect vision?
It affects the
central vision
and the ability to see fine details
What part of the retina is damaged in AMD?
The
macula
What abilities may be lost in advanced stages of AMD?
The ability to drive, see
faces
, and read smaller print
What are the early signs of AMD?
AMD may have
no signs
or
symptoms
in its
early stages
What might happen if AMD worsens?
You might struggle to see anything in the middle of your
vision
What activities can AMD make difficult?
Reading, watching TV, driving, or recognizing
faces
What are some other symptoms of AMD?
Seeing
straight lines
as wavy, objects looking smaller, colors seeming less bright, and
hallucinations
Is AMD painful or does it affect the appearance of the eyes?
No
, AMD is
not painful
and does
not affect
the appearance of the eyes
What are some factors linked to the cause of AMD?
Smoking
,
high blood pressure
, being
overweight
, and having a
family history
of AMD
Who diagnoses AMD?
An
optometrist
What tools do optometrists use to check for AMD?
A
magnifying glass
with a light
What might optometrists do to help spot problems in the eyes?
Put drops in your eyes to make vision
blurry
When might you be referred to an ophthalmologist?
If there's a possibility you'll need to start treatment quickly
What is dry AMD caused by?
A build-up of a fatty substance called
drusen
at the back of the eyes
How does dry AMD progress?
It gets worse gradually, usually over several
years
Is there treatment for dry AMD?
No treatment unless it develops into
wet
AMD
What causes wet AMD?
The growth of abnormal blood vessels at the back of the eyes
How does wet AMD progress compared to dry AMD?
Wet AMD can get worse quickly, sometimes in days or weeks
What treatments are available for wet AMD?
Regular eye injections and occasionally
photodynamic
therapy
What are anti-VEGF medicines used for in AMD treatment?
To stop
vision
from getting worse and improve vision in some people
How effective are eye injections for AMD?
They stop vision getting worse in
9 out of 10
people and improve vision in
3 out of 10
people
How often are eye injections usually given?
Every 1, 2, or 3
months
for
as long as necessary
What is done to numb the eyes before treatment?
Drops
are used to numb the eyes
What are some side effects of eye injections?
Bleeding
in the eye, feeling like there's something in the eye, and
redness
and irritation
What is photodynamic therapy (PDT) used for?
To destroy the abnormal blood vessels that cause
wet AMD
How often may photodynamic therapy need to be repeated?
Usually every few
months
What are some side effects of photodynamic therapy?
Temporary
vision problems and sensitivity to light for a few days or
weeks