February is
age-related macular degeneration (AMD)/low vision awareness month. AMD is a
condition that affects older adults as their macula begins to deteriorate over
time. Though it rarely leads to total blindness, it can seriously impact
vision. However, early detection and treatment can slow the progression and
reduce the severity of vision loss.
What happens in AMD?
There are two different types of AMD: dry and
wet. The majority of people get the dry form. With dry AMD, vision begins to
decrease as small yellow deposits (drusen) form in the macula. As deposits
increase, central vision gets increasingly distorted and blind spots may occur.
In wet AMD, instead of yellow deposits forming, there is an abnormal growth of
blood vessels that interferes with the macula. The blood vessels end up leaking
and distorting vision. Scarring can lead to vision loss.
Symptoms of AMD
This
condition can progress slowly or rapidly depending on the person. Some people
hardly notice changes to their vision until they become more severe. Common
symptoms include seeing blurry spots or changes in colors. This will occur
within the central vision as opposed to peripheral vision. As the condition
worsens, it can make activities such as reading, recognizing faces, driving,
cooking, and writing more difficult. Risk factors include age, family history,
high blood pressure or cholesterol, and smoking.
How it is diagnosed?
The eye
doctor can usually detect issues during a routine eye exam. If AMD is
suspected, they may conduct more thorough testing and evaluations to determine
the extent and impact on vision. Angiography can identify the growth or leakage
of blood vessels in the eye. Regular eye exams can help detect AMD early on and
allow for more proactive treatment. This can protect remaining vision and
potentially slow the progression of the condition.
Treatment Options
Treatment
options will depend upon the type and severity of the AMD. Vitamins can be
beneficial in supporting healthier vision and there are studies evaluating what
combinations may be most effective. This can help in the early stages of AMD.
For more
advanced cases, injections or medications can assist in preventing new blood
vessels from forming or stopping leakage. In some cases this can reverse some
vision loss. Laser therapy and laser surgery are two other options for dealing
with abnormal blood vessels. They can be used to destroy problematic blood vessels
or stop new ones from forming. Seniors may also benefit from assistive devices
that enlarge objects so they are easier to see.
Because AMD
does not generally lead to complete blindness, seniors can often learn to
adapt. They may need to make some modifications, but by being proactive they
can preserve as much vision as possible. For those who do have more serious
central vision loss, assistance from an in-home caregiver can support them in
staying safe while remaining more independent.
Regular eye
exams can help prevent or detect many vision problems before they become more
noticeable. Keep your eyes healthy by getting them checked and maintaining a
healthy lifestyle.