I-care HOME2 User manual

ENGLISH
Instruction Manual
iCare HOME2
Rx Only (U.S.)

2
The information in this document is subject to change without prior notice. Should a conflict
situation arise concerning a translated document, the English language version shall prevail.
0598
Copyright © 2022 Icare Finland Oy. All rights reserved. iCare is a registered trademark of Icare
Finland Oy, all other trademarks are the property of their respective owners. Made in Finland.
Android is a registered trademark or trademark of Google Inc. Google Play is a trademark of
Google LLC. App Store is a trademark of Apple Inc.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
and any use of such marks by Icare Finland Oy is under license. Other trademarks and trade
names are those of their respective owners.
Icare Finland Oy
Äyritie 22, FI-01510 Vantaa, Finland
Tel. [phone]
www.icare-world.com, [e-mail]

3
Contents
1 Safety information ....................................................................................... 5
1.1 For healthcare professionals ......................................................... 5
1.2 For patients and healthcare professionals................................. 5
2 Intended use................................................................................................. 8
3 Clinical benefits ........................................................................................... 8
4 Essential performance................................................................................ 8
5 Restrictions of use....................................................................................... 9
5.1 Contraindications ............................................................................. 9
5.2 Environmental restrictions............................................................. 9
6 Introduction .................................................................................................10
6.1 Information on intraocular pressure............................................11
6.2 Support materials ............................................................................11
6.3 Sales package contents.................................................................12
6.4 Buttons and parts ...........................................................................13
7 Get started ...................................................................................................14
7.1 Insert the batteries .........................................................................14
8 Take a measurement.................................................................................. 15
8.1 Insert the probe............................................................................... 15
8.2 Switch on the tonometer .............................................................. 17
8.3 Find the correct measurement position.................................... 17
8.4 Adjust the supports and position the tonometer....................18
8.5 Measure your eye pressure .......................................................... 20
8.6 Measure your eye pressure in the supine position................. 22
8.7 Errors during the measurement ................................................. 23
8.8 Check the measurement quality ................................................ 24
8.9 View information on your previous measurements................ 24
9 Switch off the tonometer and dispose of the probe......................... 25
10 Tonometer modes...................................................................................... 25
10.1 Practice mode................................................................................. 25
10.2 Rental mode .................................................................................... 26
11 Tonometer settings.................................................................................... 26
11.1 Language settings ...........................................................................27
11.2 Time settings....................................................................................27
11.3 Date settings ....................................................................................27
11.4 Volume settings...............................................................................27
11.5 Probe base light settings .............................................................. 28
11.6 Display brightness settings .......................................................... 28
11.7 Tonometer’s serial number and firmware version .................. 28
12 iCare software system .............................................................................. 28
12.1 Compliancy standards................................................................... 29
12.2 Install the software........................................................................ 29

4
12.3 Transfer measurement data to iCare CLINIC or iCare CLOUD ..
30
12.4 Bluetooth notifications and errors.............................................. 31
13 Troubleshooting.......................................................................................... 32
14 Maintenance................................................................................................ 33
14.1 Replace the probe base................................................................ 33
14.2 Clean and disinfect the tonometer............................................ 34
14.3 Lifetime ............................................................................................ 35
14.4 Return the tonometer for service or repair.............................. 35
14.5 Recycle ............................................................................................. 35
15 Glossary ....................................................................................................... 36
16 Accessories, parts, and other supplies................................................. 36
17 Technical information ................................................................................37
17.1 Technical description .....................................................................37
17.2 System requirements for iCare CLINIC ......................................37
17.3 IT network specifications ............................................................. 38
17.4 Intended information flow ........................................................... 38
17.5 Potential hazardous situations resulting from the failure of
the IT network ............................................................................................ 38
17.6 Required characteristics of the IT network.............................. 39
17.7 Performance data........................................................................... 39
17.8 Symbols and trademarks ............................................................. 40
17.9 Information for the user regarding the radio communication
part of the tonometer................................................................................ 41
17.10 Bluetooth module information.................................................... 42
17.11 Statement of compliance............................................................. 42
17.12 Electromagnetic declaration........................................................ 43

5
1 Safety information
1.1 For healthcare professionals
WARNING! Federal law (U.S.) restricts this device to sale by or on the order of a
physician or properly licensed practitioner.
WARNING! Healthcare professionals must inform patients not to modify or discontinue
their treatment plan without receiving instructions from the healthcare professional.
WARNING! When reading the measurement data in a clinic or hospital environment,
make sure the tonometer and the computer or mobile device which are not medical
equipment are located outside of the patient environment, i.e. 1.5 m (5 feet) from the
patient.
WARNING! Connection of the tonometer to IT networks including other equipment could
result in previously unidentified risks to patients, operators, or third parties.
WARNING! The responsible organization should identify, analyze, evaluate, and control
any additional risks resulting from the tonometer connected to IT networks, including
other equipment.
PRECAUTION! Certain microbiological agents (for example, bacteria) can be transmitted
from the forehead or cheek support. To prevent this, clean the forehead and cheek
supports with disinfectant for each new patient.
PRECAUTION! Changes to the IT network could introduce new risks requiring additional
analysis by the responsible organization. The changes include:
• changes in the IT network configuration
• connection of additional items to the IT network
• disconnecting items from the IT network
• update or upgrade of equipment connected to the IT network
1.2 For patients and healthcare professionals
WARNING! The tonometer is intended for personal use only. Measuring other people,
animals, or objects is forbidden.
WARNING! Do not use the tonometer in the restricted environments defined in chapter
“5.2 Environmental restrictions” of this manual.
WARNING! Patients must not modify or discontinue their treatment plan without
receiving guidance from a healthcare professional.
WARNING! The tonometer must not be dropped. To avoid dropping the tonometer and
to ensure safe handling, always use the wrist strap to keep the tonometer attached to
your wrist when in use. If the tonometer is dropped and the tonometer casing opens,
press the casing to close the openings.
WARNING! Removing, covering, or defacing any label or sign on the tonometer voids all
the responsibilities and liabilities of the manufacturer concerning the safety and
effectiveness of the tonometer.
WARNING! Remove the batteries from the tonometer if it is not likely to be used for
some time.
WARNING! Only probes are intended for contacting the eye. Avoid touching the eye with
other parts of the tonometer. Do not push the tonometer into the eye.
WARNING! If you need help in using the iCare HOME2 tonometer, contact your
healthcare professional.
WARNING! Use of eye drops right before the measurement or topical anesthesia may
affect the measurement result.
WARNING! Do not use probes without a plastic tip. Do not use deformed probes.
Contact the manufacturer or local distributor if you notice faulty probes or probe
packages.
WARNING! Use only original and certified probes made by the manufacturer. The probes
are for single use (single pair of measurement sequences) only. Each session is defined
by one successful measurement in both eyes, but in case either eye is inflamed or
infected, measure the healthy eye first.
WARNING! Use probes taken only from an intact, original packaging. The manufacturer
cannot guarantee the sterility of the probe once the seal is compromised. Re-
sterilization or re-use of the probe could result in incorrect measurement values,
breakdown of the probe, cross-contamination of bacteria or viruses, and infection of the
eye. Re-sterilization or re-use will void all the responsibilities and liabilities of the
manufacturer concerning the safety and effectiveness of the tonometer.
WARNING! To prevent contamination, keep unused probes in their box. Do not touch a
bare probe. Do not use a probe if it touches a non-sterile surface such as a table or a
floor.

6
WARNING! Shorten the cheek and forehead supports of the tonometer only slightly at a
time to prevent the tonometer from getting too close to your eye.
WARNING! Do not connect anything to the tonometer’s USB port but the USB cable
supplied with the tonometer.
WARNING! Keep the USB cable out of the reach of children and pets due to the risk of
strangulation.
WARNING! The tonometer’s batteries are not rechargeable. Do not try to charge the
tonometer with USB chargers connected to a mains voltage.
WARNING! Do not connect the USB cable to the tonometer’s USB port except when
uploading patient measurement data. Do not take any measurements when the USB
cable is connected.
WARNING! The tonometer should only be opened by qualified iCare service personnel.
The tonometer does not contain any user-serviceable parts, apart from the batteries and
the probe base. The tonometer does not require any routine servicing or calibration
other than changing the batteries at least annually and the probe base every six months.
If there is a reason to believe that the servicing of the tonometer is necessary, contact
the manufacturer or local distributor.
WARNING! The tonometer must not be repaired or re-assembled by any other than the
manufacturer or its authorized service center. If the tonometer is broken, do not use it.
Take it to an authorized iCare service center for repair.
WARNING! To avoid possible damage, keep the tonometer out of the reach of children
and pets. The probe base, battery cover, screws, collar, and probes are small objects and
may be accidentally swallowed.
WARNING! Do not change the batteries or the probe base when the USB cable is
connected.
WARNING! Servicing or maintenance actions must not be performed while the
tonometer is in use.
WARNING! The tonometer must be switched off when the probe base is changed.
WARNING! The probe base must be changed, not cleaned.
WARNING! Never immerse the tonometer in liquid. Do not spray, pour, or spill liquid on
the tonometer, its accessories, connectors, switches, or openings in the cover.
Immediately remove any liquid from the surface of the tonometer.
WARNING! Do not modify the tonometer in any way. Changes or modifications not
expressly approved by the manufacturer could void the user’s authority to operate the
tonometer.
WARNING! Use of this equipment adjacent to or stacked with other equipment should
be avoided because it could result in improper operation. If such use is necessary, this
equipment and the other equipment should be observed to verify that they are
operating normally.
WARNING! Use of accessories, transducers, and cables other than those specified or
provided by the manufacturer of this equipment could result in increased
electromagnetic emissions or decreased electromagnetic immunity of this equipment
and result in improper operation.
WARNING! Interference may occur in the vicinity of equipment marked with the
non-ionizing radiation symbol.
WARNING! Sources of power frequency magnetic field should be used no closer than 15
cm (6 inches) to any part of the tonometer, including the cables specified by the
manufacturer, to avoid the degradation of performance.
WARNING! Portable RF communications equipment (including peripherals such as
antenna cables and external antennas) should be used no closer than 30 cm (12 inches)
to any part of the tonometer, including the cables specified by the manufacturer, to
avoid the degradation of performance.
PRECAUTION! Read this manual carefully, as it contains important information about
using and servicing the tonometer.
PRECAUTION! Use the tonometer only for measuring intraocular pressure. Any other use
is improper. The manufacturer is not liable for any damage arising from improper use, or
for the consequences of such use.
PRECAUTION! Do not use the tonometer near inflammable substances, including
inflammable anesthetic agents.
PRECAUTION! Report any serious incidents related to the tonometer to your competent
health authority and the manufacturer or the manufacturer’s representative.

7
PRECAUTION! When removing the tonometer from its packaging, and each time before
use, visually inspect the tonometer for any external damage, particularly for possible
damage to the tonometer casing. If you suspect damage to the tonometer, contact the
manufacturer or the distributor of the tonometer.
PRECAUTION! Use only the battery type specified in the technical specification section
of this manual. Do not use rechargeable batteries, as they do not have sufficient voltage.
PRECAUTION! The tonometer switches off the display when it has not detected any
movement for 15 seconds. The tonometer switches off automatically if it has not been
used for 3 minutes.
PRECAUTION! Before taking measurements, update the tonometer’s time to your local
time manually from the tonometer’s settings or automatically by connecting the
tonometer to the iCare PATIENT2 application or to the iCare EXPORT software.
PRECAUTION! Do not cover the eye recognition transmitters or sensor during the
measurement, for example with your fingers. Keep your hand, hair, and objects such as
pillows away from the temple side of your eye, as they produce an infrared reflection
that causes an error.
PRECAUTION! Eye detection is based on the difference of infrared reflections received
from the transmitters: the nose side reflects more than the temple side. If the
transmitters become dirty, the recognition may be interfered.
PRECAUTION! To ensure the correct functioning of the tonometer, change the probe
base every six months.
PRECAUTION! Non-ME equipment (computer or mobile device) used in the system for
transferring data must comply with the electromagnetic emission and immunity
requirements for multimedia equipment: CISPR 32 and CISPR 35.
PRECAUTION! The measurement method of the tonometer is based on a magnetically
induced motion of a probe and therefore an external magnetic or radiated RF
electromagnetic field disturbing the probe may prevent the measurement. In such a case
the tonometer continuously displays error messages during measurement and asks you
to repeat the measurement. Situation can be solved either by removing the source of
interference from the vicinity of the tonometer or by performing the measurement in
different location with no such interference.
PRECAUTION! The measurement data transfer may be interrupted during
electromagnetic disturbance. In such case, reconnect the tonometer to the computer or
mobile device. If this does not solve the issue, perform the data transfer in other
location with no such interference. The measurement data will not be deleted from the
tonometer before the data is transferred successfully.
PRECAUTION! Portable and mobile RF communications equipment can affect the
tonometer.
PRECAUTION! Although the tonometer’s own electromagnetic emissions are well below
the levels permitted by the relevant standards, they may cause interference in other
nearby devices, for example sensitive sensors.

8
2 Intended use
The iCare HOME2 tonometer is a prescription device intended as an adjunct
to the routine clinical monitoring of intraocular pressure (IOP) of adult
patients.
3 Clinical benefits
With the iCare HOME2 tonometer, you can measure your eye pressure at
various times during the day and night. These measurements taken outside
your clinic visits may help your doctor better understand your eye pressure.
High-peak and mean eye pressure as well as large eye pressure fluctuations
are risk factors for glaucoma progression (1, 2). There may be eye pressure
peaks and fluctuations outside of office hours and those would remain
undetected without home eye pressure monitoring (3,4,5). Diurnal eye
pressure data helps in treatment decisions, for example, when evaluating the
success of a pressure-lowering procedure or the effect of topical medication
(6,7).
This eye pressure measurement tool is an adjunct to the standard of care
and does not replace the conventional methods used to diagnose and
manage patients, nor should it alter the follow-up schedule otherwise
indicated for a particular patient.
4 Essential performance
The essential performance of the iCare HOME2 tonometer is to measure
intraocular pressure with specified accuracy, to display the measurement
result or error conditions, and to transfer the data into the iCare software
system.
If the essential performance of the tonometer is lost or degraded due
to electromagnetic disturbances, the tonometer continuously displays
error messages during the measurement and asks you to repeat the
measurement. See chapter “17.12 Electromagnetic declaration” for
instructions on proper electromagnetic environment.
1) Asrani et al., “Large diurnal fluctuations in
intraocular pressure are an independent risk factor in
patients with glaucoma.” J. Glaucoma 2000;9(2):134-
142.
2) Cvenkel et al., “Self-monitoring of intraocular
pressure using iCare HOME tonometry in clinical
practice.” Clin Ophthalmol 13, 841-847 2019 May 10.
3) Barkana et al., “Clinical utility of Intraocular
pressure monitoring outside of normal office hours
in patients with glaucoma.” Arch. Ophthalmol.
2006;124(6):793-797.
4) Nakakura et al., “Relation between office
intraocular pressure and 24-hour intraocular
pressure in patients with primary open-angle
glaucoma treated with a combination of topical
antiglaucoma eye drops.” J Glaucoma 2007
Mar;16(2):201-4.
5) Hughes E et al., “24-hour monitoring of
intraocular pressure in glaucoma management: A
retrospective review.” J Glaucoma 2003:12(3):232-236.
6) Awadalla et al., “Using Icare HOME tonometry
for follow-up of patients with open-angle glaucoma
before and after selective laser trabeculoplasty.”
Clinical & experimental ophthalmology vol. 48,3
(2020): 328-333.
7) Astakhov et al., “The role of self-dependent
tonometry in improving diagnostics and treatment of
patients with open angle glaucoma.” Ophthalmology
Journal. 2019;12(2):41-46.

9
5 Restrictions of use
WARNING! The tonometer is intended for personal use only. Measuring other people,
animals, or objects is forbidden.
WARNING! Do not use the tonometer in the restricted environments defined in chapter
“5.2 Environmental restrictions” of this manual.
PRECAUTION! Use the tonometer only for measuring intraocular pressure. Any other use
is improper. The manufacturer is not liable for any damage arising from improper use, or
for the consequences of such use.
PRECAUTION! Do not use the tonometer near inflammable substances, including
inflammable anesthetic agents.
5.1 Contraindications
You should not use the iCare HOME2 tonometer if you:
• have an active ocular infection (for example, pink eye or infectious
conjunctivitis)
• have had a recent trauma to your eye including corneal laceration or
corneal or scleral perforation
• have disabling arthritis or difficulty handling the tonometer
• have severe difficulty with opening your eyes, including abnormal
contractions or twitches of the eyelid (blepharospasm)
• have involuntary, rapid, and repetitive movement of the eyes (nystagmus)
You may not be eligible for use of the iCare HOME2 tonometer if you:
• have poor uncorrected near vision of 20/200 or worse
• have only one working eye
• have poor or off-center visual fixation
• have poor hearing without an aid or communicate using sign language
• use contact lenses
• have dry eyes
• have keratoconus (a corneal disorder)
• have a congenitally (from birth) small eye (microphthalmos)
• have an enlarged eye from childhood glaucoma (buphthalmos)
• have significant glaucomatous central field loss
The safety and effectiveness of the iCare HOME2 tonometer has not
been evaluated for patients with:
• high corneal astigmatism (>3d)
• history of prior invasive glaucoma surgery or corneal surgery including
corneal laser surgery (for example, LASIK)
• corneal scarring
• very thick or very thin corneas (central corneal thickness greater than 600
µm or less than 500 µm)
• whom it is already difficult to obtain clinical intraocular measurements (for
example, due to eyelid squeezing or tremor)
• cataract extraction within the last 2 months
5.2 Environmental restrictions
The iCare HOME2 tonometer should not be used in medical vehicles or
similar environments where the vibration or noise levels are so high that the
user cannot hear error signals.
See chapter “17.12 Electromagnetic declaration” for the correct
electromagnetic use environment.

10
NOTE! When not in use, keep the tonometer in the carrying case to protect it from dirt and
direct sunlight that might cause damage to the tonometer.
6 Introduction
WARNING! Healthcare professionals must inform patients not to modify or discontinue
their treatment plan without receiving instructions from the healthcare professional.
WARNING! Patients must not modify or discontinue their treatment plan without
receiving guidance from a healthcare professional.
WARNING! The tonometer is intended for personal use only and measuring other
people, animals, or objects is forbidden.
WARNING! If you need help in using the iCare HOME2 tonometer, contact your
healthcare professional.
WARNING! Federal law (U.S.) restricts this device to sale by or on the order of a
physician or properly licensed practitioner.
PRECAUTION! Do not cover the eye recognition transmitters or sensor during the
measurement, for example with your fingers. Keep your hand, hair, and objects such as
pillows away from the temple side of your eye, as they produce an infrared reflection
that causes an error.
PRECAUTION! Read this manual carefully, as it contains important information about
using and servicing the tonometer.
PRECAUTION! Report any serious incidents related to the tonometer to your competent
health authority and the manufacturer or the manufacturer’s representative.
The iCare software system consists of the following:
• iCare HOME2 tonometer
• iCare CLINIC, a browser-based software service with which the healthcare
professional and patient can view the measurement data
• iCare CLINIC On-premises, a version of iCare CLINIC that can be installed
on a hospital’s or clinic’s own server. With iCare CLINIC On-premises, the
measurements cannot be viewed from outside of the hospital’s network or
clinic.
• iCare PATIENT2 mobile application with which the patient and healthcare
professionals can view measurement data and transfer it to the iCare
CLINIC cloud service or to iCare CLOUD
• iCare EXPORT computer software with which the patients and healthcare
professionals can transfer the measurement data into the iCare CLINIC
cloud service or iCare CLINIC On-premises or iCare CLOUD
See chapter “12 iCare software system” for details.
If a patient’s tonometer is not registered to a healthcare professional’s iCare
CLINIC account, the patient can store their measurement data to a private
account in the iCare CLOUD service. For information on how to set up a
private account, read the Getting started guide in the tonometer’s carrying
case.
If the iCare CLOUD or iCare CLINIC cloud services are unavailable, the
measurement results remain stored in HOME2 tonometer’s memory. The
measurement results can be transferred when the cloud service becomes
available again. iCare HOME2 tonometer can also be used on its own without
the iCare CLOUD and iCare CLINIC cloud services.
With the iCare HOME2 tonometer, you can measure your eye pressure.
During the measurement, the tonometer’s probe gently touches your eye six
times. After the six successful measurements, the tonometer calculates your
eye pressure and stores it in the tonometer’s memory. The device history
shows the 100 most recent measurement results.
If your healthcare professional instructed you to measure both eyes, you can

11
use the same probe for both. After you have taken the measurements, place
the probe back in its container and dispose of it in a mixed waste bin. Use a
new, unused probe when you take a measurement the next time.
You can measure your eye pressure when you are sitting, standing, or lying
down (supine position). The tonometer includes infrared eye recognition
sensors to identify which eye, right or left, you are measuring.
After the measurement, you can transfer the measurement data to iCare
CLINIC or iCare CLOUD using your computer or mobile device.
Familiarize yourself thoroughly with the tonometer, software, and the
operational procedures before use.
6.1 Information on intraocular pressure
The normal eye pressure ranges from 10 to 20 mmHg (1). The risk for
glaucoma increases if the eye pressure is above this range. In normal tension
glaucoma, the optic nerve is damaged even though the eye pressure is not
very high. The optimal target pressure in glaucoma and ocular hypertension
needs to be defined case by case. Ask your healthcare professional for
your target eye pressures. Agree when you need to contact your healthcare
professional about your eye pressure measurement results.
Follow your healthcare professional’s instructions on the frequency of
measurements. Unless otherwise instructed, the recommended frequency
of measurements is 3-6 times a day. Keep a record of your eye pressure
for your healthcare professional. A single measurement does not provide
accurate information on your eye pressure level. You need to take and record
several measurements over time. Try to measure your eye pressure at the
same times each day for consistency.
An elevated eye pressure as well as fluctuations in the eye pressure are
underlying risk factors for glaucoma (2,3). When you measure your eye
pressure in a variety of situations and at different times of the day, you and
your healthcare professional get a comprehensive view of the changes in
your eye pressure and the effectiveness of your medication.
6.2 Support materials
To learn to use the tonometer, read this manual carefully. The USB stick
provided in the tonometer’s sales package contains a quick guide, this
instruction manual, and a training video to help you get started with
the tonometer. If you have problems using the tonometer, contact the
organization from which you obtained the tonometer or Icare USA.
You can find contact information for Icare USA at https://www.icare-world.
com/us/.
1) Dan T. Gudgel, “Eye Pressure.” American Academy
of Ophthalmology, 2018 [https://www.aao.org/eye-
health/anatomy/eye-pressure]
2) Asrani et al., “Large diurnal fluctuations in
intraocular pressure are an independent risk factor in
patients with glaucoma.“ J. Glaucoma 2000;9(2):134-
142.
3) Cvenkel et al., “Self-monitoring of intraocular
pressure using iCare HOME tonometry in clinical
practice.” Clin Ophthalmol 13, 841-847 2019 May 10.

12
6.3 Sales package contents
AA/LR6
The iCare HOME2 sales package contains:
• iCare HOME2 tonometer
• Carrying case
• Instruction Manuals
• Probe applicator
• Quick Guides
• Screwdriver Torx TX8
• Spare probe base
• Sterilized single-use probes
• USB-C to Micro-USB B adapter
• USB cable for PC connection (USB-C to USB-A)
• USB cable for mobile device connection (USB-C to USB-C)
• USB stick with instruction materials
• Warranty card
• Wrist strap
• 4 x AA 1.5 V Alkaline batteries

13
6.4 Buttons and parts
WARNING! Removing, covering, or defacing any label or sign on the tonometer voids all
the responsibilities and liabilities of the manufacturer concerning the safety and
effectiveness of the tonometer.
1
2
5
3
4
8
9 1011 12
12
14
13
15
16
67
1. Measure button
2. Navigation buttons
3. Select button
4. Return button
5. Display
6. Battery cover
7. USB-C port and USB cover
8. Wrist strap
9. Forehead support
10. Cheek support
11. Probe
12. Probe base
13. Infrared LED transmitters
14. Infrared LED sensor
15. Probe applicator
16. Screwdriver

14
7 Get started
WARNING! The tonometer must not be dropped. To avoid dropping the tonometer and
to ensure safe handling, always use the wrist strap to keep the tonometer attached to
your wrist when in use. If the tonometer is dropped and the tonometer casing opens,
press the casing to close the openings.
PRECAUTION! When removing the tonometer from its packaging, and each time before
use, visually inspect the tonometer for any external damage, particularly for possible
damage to the tonometer casing. If you suspect damage to the tonometer, contact the
manufacturer or the distributor of the tonometer.
7.1 Insert the batteries
WARNING! Remove the batteries from the tonometer if it is not likely to be used for
some time.
PRECAUTION! Use only the battery type specified in the technical specification section
of this manual. Do not use rechargeable batteries, as they do not have sufficient voltage.
NOTE! The quality of the batteries affects the number of measurements that can be taken with
a single set of batteries.
NOTE! Replace all batteries with new ones at the same time.
1. Use the screwdriver to open the battery cover and open it up.
The batteries are in the tonometer carrying case under the box of
probes.
AA/LR6
AA/LR6
AA/LR6
2. Insert the batteries according to the markings inside the battery
compartment.
AA/LR6
AA/LR6

15
3. Close the battery cover and lock the cover with the screwdriver.
AA/LR6
NOTE! The battery charge level is shown when you switch the tonometer on:
8 Take a measurement
WARNING! Only probes are intended for contacting the eye. Avoid touching the eye with
other parts of the tonometer. Do not push the tonometer into the eye.
WARNING! Use of eye drops right before the measurement or topical anesthesia may
affect the measurement result.
PRECAUTION! Before taking measurements, update the tonometer’s time to your local
time manually from the tonometer’s settings or automatically by connecting the
tonometer to the iCare PATIENT2 application or to the iCare EXPORT software.
To ensure a reliable measurement result:
• Take the measurement in a quiet place
• Remain still and avoid talking and looking around during the measurement
If you feel unsure about taking the measurement, practice the measurement
in the practice mode of the tonometer. See chapter “10.1 Practice mode”.
8.1 Insert the probe
WARNING! Do not use probes without a plastic tip. Do not use deformed probes.
Contact the manufacturer or local distributor if you notice faulty probes or probe
packages.
WARNING! Use only original and certified probes made by the manufacturer. The probes
are for single use (single pair of measurement sequences) only. Each session is defined
by one successful measurement in both eyes, but in case either eye is inflamed or
infected, measure the healthy eye first.
WARNING! Use probes taken only from an intact, original packaging. The manufacturer
cannot guarantee the sterility of the probe once the seal is compromised. Re-
sterilization or re-use of the probe could result in incorrect measurement values,
breakdown of the probe, cross-contamination of bacteria or viruses, and infection of the
eye. Re-sterilization or re-use will void all the responsibilities and liabilities of the
manufacturer concerning the safety and effectiveness of the tonometer.
WARNING! To prevent contamination, keep unused probes in their box. Do not touch a
bare probe. Do not use a probe if it touches a non-sterile surface such as a table or a
floor.
1. Do not use a probe if it has touched your hand, a table, or other non-
sterile surface.

16
2. Place the probe applicator over the probe base.
3. Open the packaging.
4. Remove the cap.
5. Drop the probe from the container to the probe applicator.
6. Remove the probe applicator.

17
8.2 Switch on the tonometer
PRECAUTION! The tonometer switches off the display when it has not detected any
movement for 15 seconds. The tonometer switches off automatically if it has not been
used for 3 minutes.
Make sure that the date and time shown on the display are correct. If they
are incorrect, update them from the tonometer’s settings or by connecting
the tonometer to the iCare PATIENT2 application or to the iCare EXPORT
software.
Press down until you hear a beep. The text “Start” is shown on the
display.
OR 3s
3s
Alternatively, press down until you hear a beep. Then press again to
enter the measurement mode. The text “Start” is shown on the display.
8.3 Find the correct measurement position
The forehead support A rests on your forehead and the cheek support B
rests on your cheek.
START 90°
Look straight ahead and the tonometer is at a 90-degree angle to your
face. The probe is about 5 mm (3/16 inches) from your eye and points
perpendicularly to the center of your eye.
NOTE: The tonometer measuring button should point upwards.

18
START
<90°
If you see a red light in the probe base, the tonometer is tilted too much
downwards. You should straighten your posture and lift your chin.
8.4 Adjust the supports and position the tonometer
WARNING! Only probes are intended for contacting the eye. Avoid touching the eye with
other parts of the tonometer. Do not push the tonometer into the eye.
WARNING! Shorten the cheek and forehead supports of the tonometer only slightly at a
time to prevent the tonometer from getting too close to your eye.
PRECAUTION! Eye detection is based on the difference of infrared reflections received
from the transmitters: the nose side reflects more than the temple side. If the
transmitters become dirty, the recognition may be interfered.
PRECAUTION! Do not cover the eye recognition transmitters or sensor during the
measurement, for example with your fingers. Keep your hand, hair, and objects such as
pillows away from the temple side of your eye, as they produce an infrared reflection
that causes an error.
1. Before the measurement, adjust the forehead and cheek supports to
the correct length. Start with the supports at the maximum length.
You can take the measurement sitting, standing, or lying down (supine
position).
START
90°
START
START
90°
START
90°
You can hold the device with one or both hands.
START

19
2. Shorten the supports two clicks at a time to prevent the tonometer
from getting too close to your eye.
3. Place the tonometer against your face and look into the probe base.
START
The probe points perpendicularly to the center of your eye when the
blue and green rings in the probe base are symmetrical.
4. If the rings are not symmetrical, the probe does not point
perpendicularly to the center of your eye. Correct the position of the
tonometer.
START

20
5. Keep both eyes open. Covering the eye not being tested may help
you see the rings more clearly.
6. Shorten the supports by rotating them clockwise two clicks at a
time until you only see a symmetrical green ring. The tonometer is
now at the correct distance from your eye.
START
5 mm (0.2 inches)
8.5 Measure your eye pressure
1. Start the measurement when you see only a symmetrical green ring.
Press the Measure button once. The probe gently touches your
eye.
1x
START
2. A single beep indicates a successful measurement. Continue taking
measurements, until you hear a long beep and the light in the probe
base turns off.