Ophthalmic Medical Assisting Questions with correct answers

Ophthalmic
Medical
Assisting
Questions
with
correct
answers
What
are
the
three
levels
of
certified
ophthalmic
medical
assisting?
-
ANSWER-Certified
ophthalmic
assistant
(COA),
Certified
ophthalmic
technician
(COT),
Certified
ophthalmic
medical
technologist
(COMT)
What
is
an
orthoptist?
-
ANSWER-Helps
with
diagnosis,
management
and
non-surgical
treatment
of
eye
muscle
imbalance
What
is
an
Optometrist?
-
ANSWER-Prescribes
and
fits
eyeglasses
and
contact
lens,
screens
for
eye
diseases
and
is
NOT
a
medical
doctor
What
is
an
optician?
-
ANSWER-Dispenses
eyeglasses
and
contact
lenses
from
prescription
supplied
by
others
What
are
the
six
extraocular
muscles
&
their
functions?
-
ANSWER-medial
rectus
-
inward
rotation,
inferior
rectus
-
downward
rotation,
lateral
rectus
-
outward
rotation,
superior
rectus
-
upward
rotation,
superior
oblique
-
incyclotorsion
(down/inward),
inferior
oblique
-
excylptorsion
(up/outward)
What
does
strabismus
mean?
-
ANSWER-Misalignment
of
the
eyes
that
causes
vision
to
be
disturbed.
Happens
when
extraocular
muscles
do
not
work
in
a
coordinated
manner .
What
is
ptosis?
-
ANSWER-drooping
of
the
upper
eyelid
What
is
the
fovea?
-
ANSWER-Center
part
of
macula
that
has
ONL Y
cones
What
are
floaters?
-
ANSWER-Small
particles
of
dead
cells
and
other
debris
in
vitreous
and
collagen
fibers
from
vitreous
degeneration.
Experienced
by
patients
as
spots
or
cobwebs What
are
the
2
types
of
photoreceptor
cells
&
what
are
their
functions?
-
ANSWER-Rods
—>
"night
vision"
&
peripheral
Cons
—>
sharp
central
vision
&
perception
of
color
What
is
the
vitreous?
-
ANSWER-Clear
jelly-like
substance
that
fills
the
intra-ocular
cavity
behind
the
lens
Describe
how
the
eye
converts
light
rays
to
a
perceived
image
-
ANSWER-Light
rays
reflected
from
an
object
are
focused
by
the
cornea
and
lens
to
produce
an
upside
down
image
on
the
light-sensitive
retina.
The
retina
converts
the
image
to
electrical
impulses
which
are
carried
by
the
optic
nerve
to
the
brain's
visual
cortex
where
they
produce
sensation
of
light
Name
4
structures
in
the
adnexa
-
ANSWER-The
orbit,
extraocular
muscles,
eyelids,
lacrimal
apparatus
Name
three
functions
of
the
eyelids
-
ANSWER-Protect
eye
from
injury ,
exclude
light,
aid
in
lubricating
ocular
surface
Name
three
layers
of
the
eyelids
-
ANSWER-Outer
layer
of
skin,
middle
layer
of
fibrous
tissue
and
muscles,
inner
layer
of
tissue
(conjunctiva)
What
are
the
two
primary
functions
of
the
lacrimal
apparatus?
-
ANSWER-T o
produce
and
drain
tears
What
is
the
relationship
between
the
lacrimal
gland,
lacrimal
sac
and
nasolacrimal
duct?
-
ANSWER-T ears
are
produced
by
the
lacrimal
gland;
tears
are
collected
in
the
lacrimal
sac;
tears
drain
into
the
nasal
cavity
by
means
of
the
nasolacrimal
duct.
What
is
the
primary
function
of
the
cornea?
-
ANSWER-T o
focus
light
rays
reflected
to
the
eye.
The
cornea
makes
up
2/3
of
the
focusing
power
of
the
eye.
What
are
the
functions
of
the
5
layers
of
the
cornea?
-
ANSWER-Endothelium
-
maintains
proper
fluid
balance.
Epithelium
-
first
line
of
defense
against
infection
and
injury .
Bowman
membrane
-
acts
as
an
anchor
for
the
epithelium.
Descement
Membrane
&
Stroma
-
rigidity