Last Updated：2025/11/21
An object that partially or completely impedes the amount of light reaching the eye. / (medicine) An implement designed to temporarily block light to one eye.
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occluder
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Source Word
occluder
Sense（3）
(medicine,
cardiology)
A
catheter-delivered
device
that
blocks
a
hole
in
the
wall
of
a
heart,
often
having
an
umbrella-type
design
and
folded
up
until
the
catheter
arrives
at
the
area
of
the
defect
in
the
heart.
Once
in
place
the
occluder
is
unfolded
on
both
sides
of
the
defect
so
that
pressure
from
both
sides
keeps
it
in
place.
（ plural ）
