How Does The Tonometer Work; Contraindications - Icare HOME TA022 Patient Manual

4 Icare HOME Patient Guide
HOW DOES THE
TONOMETER WORK
The tonometer measures your eye pressure using
a disposable probe that gently contacts your eye
during the measurement. You may need a mirror
to help you determine the correct measurement
position. The recommended frequency of measure-
ments is 3-4 times per day with a maximum of 5-6
times per day.
A complete measurement is a series of six very rap-
id measurements. It may take from several seconds
to a minute to take the measurement. The probe
moves to the cornea and back during each of the
six rapid measurement. After the series of six mea-
surements, the tonometer calculates your final eye
pressure and stores it in the tonometer's memory.
The probe is disposable, but you can use the same
probe for both eyes if the health care professional
instructed you to measure both eyes. Dispose of
the probe in a normal trash container or a metal
waste bin after you have taken the measurements
for both eyes.
The tonometer includes infra-red eye recognition
sensors to identify which eye, right or left, you
are measuring. It is important not to cover these
sensors with your fingers, hand, hair etc., because
covering the sensors causes an error. It is also im-
portant to keep objects such as pillows away from
the temple side of your eye, as they produce an
infrared reflection that causes an error.
It is important that you carefully read all instruc-
tions in this guide before using the tonometer.
ENGLISH www.icare-usa.com

CONTRAINDICATIONS

You should not be prescribed the HOME
tonometer if you:
• Have an active ocular infection
(for example, pink eye)
• Had recent trauma to your eye
• Cannot demonstrate you are able to use the
Icare HOME tonometer after training and fail
to complete the certification procedures.
This includes poor agreement between
Goldmann applanation tonometry (GAT)
and Icare HOME measurements.
• Have disabling arthritis or difficulty handling
the Icare tonometer
• Have a severe difficulty in opening your eyes
including abnormal contractions or twitches
of the eyelid
• Have involuntary, rapid and repetitive
movement of the eyes
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