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Alternate Light Diagnostic



for early detection of subcutaneous tissue damage

Forest Trees
The Problem

Pressure injuries, also known as pressure ulcers or bedsores:

  • U.S. incidence 2.5 million people per year

  • Cost $11 billion per year

  • Average $48,000 per injury

  • 60,000 annual deaths

  • 17,000 lawsuits annually; average cost $250,000

  • No Medicare reimbursement unless fully documented when patients transfer into hospital

The Solution

Alternate Light Diagnostic

  • Early detection of subcutaneous tissue damage

  • Non-invasive, fully portable, hand-held device

  • Multi-wavelength light source, digital camera & image storage

  • Visualize and document early stage tissue changes not visible in ambient light

  • Screen sites of previous injury


Clinical Studies

Early Detection of Pressure Injury
Using a Forensic
Alternate Light Source

Heather Hettrick, PT, PhD, CWS, CLT-LANA, CLWT; Cheryl Hill,
PT, PhD, DPT; and Patrick Hardigan, PhD

From the Department of Physical
Therapy, Nova Southeastern
University, Fort Lauderdale, FL


Wounds 2017;29(8):222–228. Epub 2017 May 25

Misty Forest Reflection


Discerning Light, Inc. was founded in 2020 to commercialize patent-pending technology developed by Dr. Heather Hettrick, a professor in the Department of Physical Therapy at Nova Southeastern University. Dr. Hettrick is a Certified Wound Specialist from the American Board of Wound Management (ABWM). Kenneth Rice, MBA, JD, LLM is Discerning Light’s CEO.  Mr. Rice has over 30 years of experience in life sciences in instruments, pharmaceuticals, and imaging diagnostics. Jennifer Bunce-Stone will lead Discerning Light’s operations activities and day to day clinical and regulatory efforts. Jennifer has over 10 years of experience in both OTC and Rx wound care product manufacturing and distribution.

Snow Forest Road


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