SENSIMED Triggerfish®

What is it?
The SENSIMED Triggerfish® Sensor is a soft single use contact lens, containing strain gauges embedded within it to monitor fluctuations in diameter of the corneo-scleral junction. The output signal sent wirelessly to the SENSIMED Triggerfish® Antenna is directly correlated to fluctuations in intraocular pressure. This is an alternative to phasing and has the advantage of giving continuous measurements for a 24 hour period. SENSIMED Triggerfish® is a breakthrough solution to continuously monitor fluctuations of intraocular pressure.

How is it done?
A soft contact lens is inserted into one eye and an adhesive antenna is worn around the eye. This is connected to a portable recorder which is worn around the neck. You may go home and continue with your normal daily activities including sleep periods. The next day you return to the clinic to have the contact lens removed and the data captured will then be analysed by your consultant.

Before your appointment:
Do not wear contact lenses to your appointment. If your glasses have a metal rim they may interfere with the antenna – please speak to one of the optometrists if this is the case prior to your appointment. Do not worry if you have never worn contact lenses before as we will use a drop of local anaesthetic beforehand.

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