Welcome to PhotoMed's Study Systems Site

Wellness depends upon myriad bodily systems communicating and working in harmony.

Unfortunately, healing after an injury may stall with no end in sight:

  • Pain-masking medications satisfactorily "manage" the pain for millions of Americans

  • Yet 19 million Americans suffer "unmanageable" chronic pain

  • Other millions suffer "ouchless" loss of sensation or movement.

This site is about the people with impaired sensory or motor functioning and unmanageable chronic pain. PhotoMed’s inventions open new ways to think about the notion that “chronic” means forever.

The outcomes show how the body can return to normal functioning. The body heals itself; the therapy prompts a restart. How long that normal lasts is up to the body and not the therapy.


Imagine not having to ask your wife to open jars…, Harlan quipped as he demonstrated his "new" skills.

Brenda’s fingers went numb after elbow surgery but resumed “normal” touch sensations while testing the new therapy.  She observed her fingers as she tested to see if the "new" feelings were real.

Richard and Frank were also surprised by the unexpected during-visit improvements in their sensations and movements.

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Could it be the years of delay that make the return to normal functioning feel like magic?


PhotoMed’s inventions both prompt and record events previously thought to be impossible.

The team developed the real-time recording systems to connect-the-dots among therapy settings, responses, and outcomes. The data spanned 500+ volunteers in 7 feasibility studies across 5 states.

The real-time recordings helped to find therapy settings that make the therapy efficient.

The recordings, like nature videos, let the viewers observe previously unseen events. As you review this site, consider the possibilities for research into the previously "impossible" to study phenomena.

It is the efficiency for prompting and recording the return to normal functioning that can save time and money for future research.

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Thermal imaging provides feedback for abnormal skin temperature phenomena

Thermal imaging lets viewers observe skin temperatures. Certain therapy settings may prompt the return to comfortable skin temperature regulation. The duration of the coldness doesn't appear to limit the return to normal functioning.

You can imagine this man's surprise when his hands warmed on the first try. The warming wouldn’t have been important except for his 30 years of coldness discomfort.

Conventional still images show that warming occurred during the visit. But what happened in between the images?

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The practitioner monitored the volunteer's skin temperatures during therapy. Once warming was noted, additional therapy wasn't needed that visit.

This man's hands responded on the first attempt during his 3 visits. He reported relief for more than a year.

Like a video referee, replaying the data in fine temporal and spatial details may suggest different interpretations.

It is the measurement of TIME that helps make the therapy more efficient. In 2000, achieving the warming response using a fixed wavelength took hours of clinician's time.

Prompting cold hands to resume normal functioning may relieve previously unmanageable pain associated with complex regional pain syndrome (CRPS).


The Variable-wavelength Therapy

  • The Vari-Chrome® Pro: Provides stimulation via wavelengths throughout the visible spectrum (430 - 700nm) as a standalone hand-held device.

The Vari-Chrome® Pro selectively emits wavelengths, with no missing wavelengths, from the visible spectrum (430-700nm). The wavelengths may be manually selected or via pre-programmed ranges (1 to 5 on the graphic). Additionally, the rate of wavelength variation, and the frequency (continuous to 1000Hz), and intensity may be adjusted during therapy.

  • The Vari-Chrome® Pro2: Provides stimulation via fiber optic cables from a base unit with the same controls as the standalone Vari-Chrome® Pro. The Pro2 may be integrated with the Instant Verification System via an isolated USB (not shown).

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The Vari-Chrome® Pro2 features interchangeable fiber optic cables. Request a quote for custom cables and a USB / computer control interface.