Topcon TRC-NW8Fplus Assembly instructions

TRC-NW8Fplus
Basic Operations

TRC-NW8Fplus –Basic Operations - Overview
•A general overview of the camera
•Basic preparation of the patient
•Operation of the controls and functions
•Advanced features
This presentation will cover:

TRC-NW8Fplus –Basic Operations - Overview
•Can capture through pupils of
4.0mm in diameter or larger.
(3.3mm or larger if the small
pupil function is on)
•Auto focus
•Auto capture
•Auto small pupil detection
•Color fundus photography
•Fluorescein Angiography
•Fundus Auto Fluorescence
The TRC-NW8Fplus has the following features:

TRC-NW8Fplus –Basic Operations - Nomenclature
Digital camera mount
Diopter compensation selector
Focusing knob
LCD color monitor
Screen adjustment controls
FAF filter slider
IR filter slider
Control panels
Joystick

TRC-NW8Fplus –Basic Operations –Left Control Panel
Menu display on screen
Focusing bars on/off and auto function on/off
Illumination intensity
Flash intensity
Chin rest position up/down

TRC-NW8Fplus –Basic Operations –Right Control Panel
Fixation targets and their position
Photography mode: Color / FA
Small pupil diaphragm
Auto function switch: Auto on/off
Timer switch for FA timing
Stereo photography switch
Electronic zoom on/off

TRC-NW8Fplus –Basic Operations –Flash intensity
Set the flash intensity
Can be adjusted in four steps in the (+) and (-)
When at factory default, value is displayed.
Factory default for flash level is 3

TRC-NW8Fplus –Basic Operations - Movements
Movements of
the base: back
and forth and
right and left, are
performed by
using the control
lever.
Before moving the optical head, make sure that the brake
knob at the base is released.

TRC-NW8Fplus –Basic Operations –Illumination level
Set the illumination level using the illumination level switch
If the AUTO illumination level is on it is not necessary to set the
illumination level manually. ("AUTO" is displayed for the illumination
level.)

TRC-NW8Fplus –Basic Operations - Illumination level
For manual setting, turn off the auto illumination using the AUTO button in the
function panel.
When the illumination level is set manually it is displayed
in eleven steps, "1/11" to "11/11”

TRC-NW8Fplus –Basic Operations –Flash Intensity
Set the flash level using the Flash level switch
The compensation value can be observed on the monitor.
The compensation value has four steps in the (+) and (-) from the default value.
When the flash level is the default value, no compensation value is displayed.

TRC-NW8Fplus –Basic Operations - Focusing
Pull the instrument backwards using
the control lever.
Instruct the patient to look at the
target in the center.

TRC-NW8Fplus –Basic Operations - Focusing
Observe the anterior segment image
on the monitor.
Move the optical head using the
control lever until you get the
patient's eye centered in the monitor.

TRC-NW8Fplus –Basic Operations - Focusing
Bring the ( ) brackets towards the patient's pupil
Pupils should be larger than the brackets
Comparison of the brackets and the pupil indicates whether the
pupil is large enough to capture an image.

TRC-NW8Fplus –Basic Operations - Focusing
Slowly bring the instrument closer to the patient:
The retina image will appear on the monitor.

TRC-NW8Fplus –Basic Operations - Focusing
Bring the instrument even closer to the patient; and two
bright spots for distance alignment will appear on the screen.

TRC-NW8Fplus –Basic Operations –Auto focus
When the auto focus is ON, the
split lines align automatically.
The auto focus function may not work in
patients with dense cataracts, high
myopia or corneal irregularities.
When the auto focus function is OFF,
**use the focusing knob to adjust the
split lines into one line on the monitor.

TRC-NW8Fplus –Basic Operations - Focusing
Move the control lever until the two alignment spots are
merged into one single spot.

TRC-NW8Fplus –Basic Operations - Focusing
Move the control lever and the optical head to bring the
bright spot in the monitor into the brackets.

TRC-NW8Fplus –Basic Operations - Capturing
When distance and centering are correct, the
instrument automatically takes a picture.