36
Operation
of
the
device
Preparation
of
the
device:
•
Leveling
-
Check
the
horizontal
mounting
of
the
phoropter
head
using
the
spirit
level
(
2
,
Fig.
5).
-
If
necessary
use
the
leveling
screw
(
3
,
Fig.
5)
to
align
the
head.
•
Cleaning
-
Clean
the
face
shield,
the
forehead
rest
and
the
examination
window.
Please
note
the
information
given
in
section
Care
and
cleaning
on
page
48.
•
Use
the
near-point
chart.
If
you
want
to
perform
a
near-point
examination:
-
Mount
the
fixing
rod
(
3
,
Fig.
1)
to
the
phoropter
head
by
inserting
the
rod
into
the
respective
mounting
on
the
phoropter
head
(
7
,
Fig.
5).
-
Plug
the
near-point
chart
(
4
,
Fig.
1)
onto
the
fixing
rod.
-
Position
the
near-point
chart
in
front
of
the
patient’s
eye
at
the
desired
distance
(
3
,
Fig.
19
).
In
order
to
set
the
desired
value
on
the
scale
(
7
,
Fig.
19),
push
the
near-point
chart
until
the
edge
of
the
head
piece
forms
an
intersection
with
the
scale
foot
(
1
,
Fig.
19).
Finally
mount
the
near-point
chart
using
the
screw
(
2
,
Fig.
19).
The
distance
between
the
patient’s
eye
and
the
near-point
chart
can
be
measured
in
centimeters,
inches
or
diopters.
000000-2075-933-GA-en-GB-230822
