PLUSOPTIX Vision Screener How to use

Vision Screener
Short Manual 3
“Preparing and performing a measurement”
Plusoptix GmbH
Neumeyerstrasse 48
90411 Nuremberg
Germany
www.plusoptix.com
Edition: 12/16/2019

Seite 2 von 8
Table of Contents
1Preparing for a measurement..........................................................................................3
1.1 Preparing the measurement area................................................................................. 3
1.2 Entering or retrieving patient data................................................................................. 4
1.3 Selecting the referral criteria......................................................................................... 4
2Performing a measurement .............................................................................................5
2.1 Preconditions for a successful measurement ............................................................... 5
2.2 Selecting an age group ................................................................................................ 6
2.3 Starting the measurement and adjusting the Plusoptix Vision Screener....................... 7
List of figures
Figure 1: Measuring environment.......................................................................................... 3
Figure 2: Selecting the referral criteria................................................................................... 4
Figure 3: Home screen.......................................................................................................... 6
Figure 4: Selection of the age group...................................................................................... 6
Figure 5: Aligning the plusoptiX 12 model.............................................................................. 7
Figure 6: Detecting the correct measuring distance............................................................... 8
This manual is a supplementary short manual. For general information about your
Plusoptix device, such as its intended use, basic handling, technical information,
maintenance, service, and warranty information, please refer to the user manual that
was delivered with your device. This user manual can also be downloaded on our
homepage (plusoptix.com), under “Support”.
List of further supplementary short manuals
1. Checking scope of delivery and learning about the device
2. Adjusting settings and setting up WLAN
3. Preparing and performing a measurement
4. Viewing the measurement results
5. Entering, retrieving or deleting patient data
6. Documenting measurement results electronically
7. Documenting measurement results on paper
8. Exporting back-ups and reports (only plusoptiX S12C and S16)
9. Downloading software updates
10. Troubleshooting malfunctions and measuring interruptions

Seite 3 von 8
1 Preparing for a measurement
1.1 Preparing the measurement area
The measurement is carried out using infrared light, which is also contained in
sunlight and in the light of bulbs and halogen spotlights, for example. This infrared
light is invisible to the human eye and completely safe.
To obtain correct measurement values, it is important to avoid disruptive sources of
infrared light in the examination room. Close curtains, roller blinds and shutters to
block out the sun’s rays.
Turn off all light sources that produce heat. This does not mean that the
examination room should be dark. Cold light sources, such as energy saving bulbs
and neon lights, do not affect the measurement values.
The child must look at the device in order for a measurement to be taken. Make sure that the
child is sitting straight and its head is not turned over their shoulder. The child’s knees and
nose should be facing the camera.
The attention of infants is steered towards the device by playing a special warble sound.
However, this only works if the child is not distracted by other people or objects in the
examination room. Close the door of the examination room and avoid any attention-grabbing
activities, such as walking around and clicking your fingers. Do not use any additional fixation
aids!
Note:
The attention span of infants is very short. You can use the fact that the examination
room is unfamiliar to the infant to your advantage. An attention-grabbing warble
sound and the child-friendly Plusoptix smiley face in this unfamiliar environment will
always arouse interest. Avoid any lengthy conversations with the parents before the
measurement.
3.3 feet (1 meter)
measuring distance
At eye level
See chapter 4.2
No direct sunlight
See chapter 3.5
Pupil diameter
Minimum 3 mm
Maximum 8 mm
Figure 1: Measuring environment

Seite 4 von 8
1.2 Entering or retrieving patient data
A measurement can be performed anonymously or by indicating patient data (1). More
information about entering or retrieving data in the internal patient database can be found in
supplementary short manual 5.
If no patient data is entered or no saved patient data is selected, the measurement is
performed under an anonymous consecutive patient ID. The patient ID has the following
structure:
<last 4 digits of the serial number>-<consecutive number>-<date>-<time>
You have the following options for entering the patient data:
- Entering and retrieving patient data before the measurement
- Entering and retrieving patient data after the measurement
- Importing patients from the EMR software before the measurement
Note:
The “plusoptiX S12R” has no internal patient database. After the measurement a
single line to enter patient data will be portrayed, where you can fill in individual
patient data. These data will also be portrayed in the screening report and on the
self-adhesive label.
1.3 Selecting referral criteria
Touch the button to choose the referral criteria (2) in the settings. There are five validated
groups of referral criteria to choose from (see Figure 2).
These five groups are called ROC 1, ROC 2, ROC 3, ROC 4 and ROC 5. Each of these
groups defines different, age-dependent thresholds, which lead to a “Refer” preventive test
result. These five groups are shown along a schematic ROC (Receiver Operating
Characteristic) curve. Select a group by touching the relevant button (3) and confirm by
touching the green checkmark (4).
1) 2) 3) 4)
Figure 2: Selecting referral criteria

Seite 5 von 8
2 Performing a measurement
2.1 Preconditions for a successful measurement
a) The measuring distance is correct:
The measuring distance must be between 37 and 41 inch (95 and 105 cm). Check
whether the camera image on the screen is in focus. You must be able to see individual
hair of the eyelids or eyelashes clearly on the camera image.
b) Patient is looking at the camera
The device and the eyes of the patient must be aligned with one another. The patient
must look at the nose of the smiley face. For this reason, an attention grabbing warble
sound is emitted at the beginning of the measurement.
Note:
If a child is not looking at the nose of the smiley face during the measurements,
this can cause an inconclusive measurement. Knees and nose of the child
always have to point towards the device.
c) Both of the patient’s pupils are completely visible
The pupils must not be covered by e.g. eyelids, eyelashes or hair. Check whether both
pupils can be seen completely on the screen and whether they are encircled in green.
d) Both pupil diameters must be between 3 and 8 mm
Note:
If a red error message is displayed, an action recommendation is also displayed
below it. More information is available in supplementary short manual 10.

Seite 6 von 8
2.2 Selecting an age group
After you have set the time and date, the home page will be displayed every time you turn
the device on again.
Figure 3: Home screen
Select an age group (1) by touching the appropriate age range (see Figure 4). You must
select the age group (1) in order to ensure the measurement values of the patient are
compared with the correct age-specific referral criteria (see Chapter 1.3 “Selecting referral
criteria”).
Figure 4: Selection of the age group
1)

Seite 7 von 8
2.3 Starting the measurement and adjusting the Plusoptix Vision Screener
- Hold the device at eye level to the child, about 3.9 feet (1.2 meters) away. The measuring
distance is 3.3 feet (1 meter), but it requires practice to estimate the measuring distance
correctly in one go. It is easier to hold the device somewhat further away at the start of the
measurement and then slowly move it towards the child.
Note:
The screen in the plusoptiX S12 models is fixed at a 45° angle to the camera
axis. Tilt your wrists downwards to align the camera.
- By touching the flashing “GO” button (1) or pressing the trigger, you will start the camera
and a warble sound will be heard. You can now see the camera image on the screen.
Note:
A started measurement can be aborted by touching the screen.
- Adjust the device so that both eyes can be seen on the screen and then slowly move the
device towards the patient until the camera image can be seen in high-definition on the
screen. Firstly, the pupils will be surrounded by white squares (the image is still very
blurred), then with red and finally with green circles (see Figure 6 on the next page).
1)
Figure 5: Aligning the plusoptiX 12 model

Seite 8 von 8
The image is blurry. As the measuring distance is too great, you can see the head of the
patient virtually in its entirety. Move the device towards the patient until the camera image
can be seen in high-definition on the screen and both pupils are encircled in green (see
next picture).
The image is blurry. As the measuring distance is too small, the eyes can be seen on the
screen. Move the device away from the patient until the camera image can be seen in high-
definition on the screen and both pupils are encircled in green. (see previous picture)
The image can be seen in high-definition on the screen and both pupils are encircled in
green. As soon as another warble sound can be heard, the device begins the actual
measurement. The second warble sound ensures that the patient keeps on looking at the
camera while the device begins the measurement. Don´t move the device and wait for the
measurement to be completed.
Figure 6: Detecting the correct measuring distance