Manufacturer: I-MED PHARMA
Product code: DEIPEN




The New Standard For Diagnosing Dry Eye Disease

I-PEN®, the world’s first, hand-held, point-of-care, solid state electronic diagnostic device to detect and indirectly measure the elevated tear film osmolarity levels associated with mild, moderate and severe Dry Eye Disease.

  • Quantitative measurement of osmolarity

  • Affordable point-of-care test

  • Quick and simple to use (takes less than 5 seconds per eye)

  • Reproducible, accurate and reliable results

  • Uses Single-Use-Sensors (SUS)

How Does Tear Film Osmolarity Work?

The I-PEN® Osmolarity System is a solid state electronic diagnostic device for the quantitative measurement of osmolarity (concentration of dissolved salts in solution) of human tears in normal and Dry Eye Disease patients.

The I-PEN® Osmolarity system, used in conjunction with the I-PEN® Osmolarity Single Use Sensors (SUS), provides a quick and simple method for determining tear osmolarity of the tissues bathed in the tear film of the orbital tissues such as the papabral conjunctiva. After approximately 2-5 seconds of contact with the eyelid tissue, the I-PEN® will display a quantitative tear osmolarity test result on the liquid crystal display (LCD) in units of mOsms/L. No calculations required. The I-PEN® Osmolarity Test utilizes an impedance measurement to provide an indirect assessment of osmolarity of the tear film of the eye.​​

The I-PEN® is designed for use as an in-practice screening device both for patients presenting with dry eye symptoms and for all pre-and post-surgical patients.


In addition, the I-PEN® is an invaluable asset for monitoring the progress of dry eye treatment therapies. The I-PEN® is for professional in-vivo diagnostic use only.

The I-PEN® requires:

  • Single-Use-Sensors (SUS) sold separately

  • Replacement battery CR2032 

To Be Used In Conjunction With I-PEN® Single Use Sensors (SUS)

  • Designed for in-vivo use with I-PEN® Tear Osmolarity System

  • Accurate and reliable results

  • Individually wrapped for single use

  • Affordable

  • Box contains 50 sensors

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© Copyright Grafton Optical Company Ltd 2017, United Kingdom