Eye-VapoMeter

For tear evaporation measurements

Eye-VapoMeter – Convenient tear evaporation measurements

The Eye-VapoMeter is the first and only portable instrument to measure tear evaporation rate easily. Tear evaporation rate (TER) can change when suffering from dry eye syndrome or wearing contact lenses. Efficacy of eye drops or other treatments can also be followed by measuring TER.

The Eye-VapoMeter is based on proven technology capable of measuring very high evaporation rates (50-300 g/m²h), like TER quickly and without saturation. The instrument is designed to fit perfectly on the eye. The measurement is independent of instrument orientation and subject’s posture, that makes the measurements comfortable for the subject.

BENEFITS

Rotatable adapter fits perfectly on the eye

Short measurement time, typically 15-20 sec

Wide measurement range up to 300 g/m²h without saturation

Ready to use - no daily calibration required

Closed chamber - non-sensitive to ambient airflows

Fully portable and battery operated

Wireless connection to PC

Closed chamber measurement principle

At the core of the VapoMeter is a humidity sensor mounted in a measurement chamber. The chamber is closed by the skin or other measurement surface during the measurement period and is unaffected by ambient airflows. The sensor monitors the increase of relative humidity (RH) inside the chamber during the measurement phase and the evaporation rate value (g/m²h) is automatically calculated from the RH increase. Ambient temperature and humidity are recorded using an external room sensor.

Technical details

Locate your nearest distributor

For further information on Delfin instruments please contact Delfin head office or one of our official representatives.

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