James D Carroll
FRSM, AMInstP
Photobiomodulation (PBM Therapy), previously known as Low-Level Laser Therapy (LLLT) Expert
James D Carroll Quick Facts
- Career Focus
- Founder, CEO, Speaker, Trainer
- Affiliation
- THOR Photomedicine
Engineer
A recognised authority on Photobiomodulation mechanisms of action, dose, dose rate effects and the measurement and reporting of parameters.
I collaborate with universities on Photobiomodulation protocol design and the reporting of treatment parameters:
Harvard Medical School
Harvard School of Public Health
Massachusetts General Hospital
Brigham and Women's Hospital (Boston)
Massachusetts Institute of Technology (MIT)
University of Birmingham School of Dentistry
Leiden University Medical Centre, Amsterdam
New York University
University of Pennsylvania
Stanford University School of Medicine
Many NHS hospitals
US Airforce
APPOINTMENTS :
Biomedical Optics Society - conference co-chair (2009 - to-date)Fellow of The Royal Society of Medicine (2009 - to-date)
Editorial Board of Photomedicine and Laser Surgery (2008 - 2013)
World Association for Photobiomodulation Therapy (WALT) Industry rep. (2000 - 2004) and industry rep. board member (2018 - to-date)
North American Association for Laser Therapy board member (2002 - 2006)
Free Articles & Book Excerpts
What is Photobiomodulation (PBM Therapy)?
https://www.thorlaser.com/PBM/
How does PBM / Photobiomodulation Therapy work?
https://www.thorlaser.com/PBM/how-does-PBM-work.php
What are the benefits of PBM / Photobiomodulation Therapy?
https://www.thorlaser.com/PBM/benefits-of-PBM.php
What are the PBM Therapy contra-indications?
https://www.thorlaser.com/PBM/PBM-contraindications.php
Free Audio & Video Samples
James D Carroll Audio & Video Programs
James D Carroll Books
A Dosimetric Reappraisal of the Photobiomodulation Literature Assessing Animal Safety and Phototoxicity Evidence for Photobiomodulation in Oncology: Phantom Dangers
https://www.mdpi.com/2227-9059/14/8/1859
Photobiomodulation Therapy in the Management of Orofacial Neuropathic Pain—WALT Position Paper 2026
https://www.mdpi.com/2077-0383/15/3/1304
Websites & resources
SelfGrowth-published websites, downloads, and contributor profile websites connected to this expert.
Contacting James D Carroll
THOR Photomedicine Ltd Head Office - UK
TEL +44 (0)1494 797 100 - UK & rest of world
Units 1 & 2 Anglo Office Park
White Lion Road
Amersham
Buckinghamshire
HP7 9FB
THOR Photomedicine Ltd - USA and Canada
TEL +1 877 355 3151 - USA
8375 Jumpers Hole Road, Suite 110
Millersville
MD 21108
USA
Websites:
How to get started
On Star Trek, when someone is injured, they are taken to sick bay where the doctor uses a low-intensity laser to heal the patient instantly. We make those (just not quite as fast as on TV).
The treatment, called Photobiomodulation (PBM Therapy), previously known as Low-Level Laser Therapy (LLLT), is considered by many scientists to be "a new branch of medicine".
Light (within certain parameters) can regenerate tissue, reduce inflammation and reduce pain. It does this by increasing cellular energy and reducing oxidative stress. These effects have been tested in over 1,800 clinical trials (RCTs) and thousands of laboratory studies, and have been published in leading journals, including The Lancet, BMJ, Nature, PNAS, Spine, Muscle and Nerve, Pain, Retina and Stroke.
Dedicated private PBM clinics are being born every month to meet public demand for pain relief, and the former head of tissue viability for Scotland, Lydia Jack, demonstrated that the laser paid for itself with the first patient she treated.
Already, THOR has over 5,000 customers in pioneering clinics and hospitals across more than 70 countries, and is the only company with FDA, CE, TGA, and NATO clearance. We are also listed on GSA and eCAT in the United States for government purchases.
Other highlights
Training courses for treatment of musculosketetal pain
The clinicians course is evidence based and includes understanding technical parameters, safety, contraindications, FDA / DoH regulations, treatment protocols, and hands-on application. It is intended to leave you more confident and more effective when using laser for pain, inflammation and tissue healing.
"Excellent day, good basic science, supported with video material, good job"
John M Whitley MD PhD
Neurosurgeon
"Comprehensive coverage of LLLT - inspiring for my practice"
Steven Hecht DC
I liked the thorough nature of the course"
Rafael Ramsey DO
"I liked the rationale for laser treatment times and dosage"
Louis Carreon PT
"Liked the explanation on the physiology of cellular changes... there were multidisciplinary people on the course so we were able to learn from each other..."
Kay Anderson
Senior II Podiatrist
"Clear and Informative... clarification of previously muddled guidelines for laser therapy..."
Angela Watson
Physiotherapist
"I liked the research presnted and videos from specialists. It worked really well"
David Gibson DO
"Course instructor very impactful"
Kelly Lewis
"Great presentation style, informative, good PowerPoint, good manual and video clips"
Fitz Douglas
"The presenter and the material was great. Easy to understand, questions well answered"
Jorgen Rasmussen DC
"All the informatio
I needed to feel confident in the use of laser was included"
Sarash Mustafa DO
"Informative, well presented, easy to learn"
Joe McGrath DC
Read more about our Low Level "Cold Laser" Therapy Training Courses