Welcome to PhotoMed's Study Systems Site

The Systems unlock a new era in medical imaging, research, and patient care. The Systems introduce paths forward for people with "treatment resistant" chronic pain and impaired functioning.


Watch as the body switches from impaired to normal functioning. We call those Quick Events. Then, "normal" continues after therapy ends.

The Quick Events may feel impossible from a "need another dose" perspective or a requirement for a "return to baseline pain".

Like with a video referee, everyone may watch events from their own perspective.

However, like finding your lost glasses, would the events be noticed if they had occurred at the proper time?

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The Quick Events occur in every system examined so far

We use the term "impairments" as an objectively measurable limitation to normal functioning. We use the terms "treatment-resistant", "nothing-works", and "unmanageable" interchangeably to mean that invasive interventions had been tried but failed to provide lasting relief. Please use the Contact Form to suggest terms and metaphors that may improve communications.

Our focus is prompting and documenting events that occur during a single uninterrupted visit. "Chronic" pain often responds after the visit ends which is too late for making adjustments to the therapy.


The Quick Events show the switch between a "chronic" state and normal functioning, like the normal awakening of a sleeping function. The body turns of and on sensory functioning every time you stand up and sit down again. More research is needed.

Because subjective pain scales can't be seen or measured, the physiological impairments typically provide a diagnostic sign the may be objectively measured.

The return to normal healing may be subtle and overlooked during the visit when the switch occurs. For example, inflammation may be present as a biomarkers but improves too slowly to become a Quick Event like being able to feel sensations again or to move a limb.

The body heals itself; the therapy prompts a restart.

You might be thinking that we're taking the switch analogy too far.

However, the data from PhotoMed's development studies suggest that there may be no 1-to-1 relationship between the wavelength, responses, and outcomes. However, some wavelengths may be more efficient than others for certain tasks. For example, red for reducing inflammation.

Versatility stems from the body's healing processes and not directly from the therapy as might occur with a pain-masking medication. After all, living things have been healing themselves since life's beginnings. The photonic energy may be used in bio-chemical processes similar to photosynthesis. A leading hypothesis suggests that red and infrared photons might improve mitochondrial functioning. The practitioner can't see mitochondria to aid in making during-visit therapy decisions.


Observation of unexpected and unpredicted responses occurring during a visit drove the team's development of the real-time recording system.

Valuing the return to normal functioning

The value to society may be maximized when the injury returns to normal functioning. 

Healing and the return to normal functioning remain the goals of many non-invasive therapies, such as rehabilitation after a stroke.

The value of restorative therapies often goes to society when the therapy stops the escalation of costs and side effects. The value to society may be maximized when the injury returns to normal functioning. 

PhotoMed's team focused on recording events in real time during a single visit. A failure respond contributed important data about settings didn't work. The aim was to make the therapy more efficient.


The data from the recording systems didn't make sense until comparisons in the outcomes could be made to distinguish the "managed" from "treatment resistant" states in the figure above. The team was surprised by unforeseen events that led to the development of the Instant Verification System to capture next similar events.

The cost trend lines are schematic. The costs for satisfactorily "managed" pain and impairments may stay constant for long periods. The costs for "nothing works" outcome likely escalates by testing additions interventions and therapies.

PhotoMed's Study Systems :

  • Instant Verification System: A study management system that documents, in real time, state transitions from chronically impaired to normal healing. The System integrates data from the Vari-Chrome Pro2 with other sensors, cameras, and external data sources with millisecond resolution.


The Instant Verification System integrates data from the Vari-Chrome Pro2 with other sensors, cameras, and external data sources with millisecond resolution.

  • 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.