Therapeutic Laser Applications (BA)

Therapeutic Laser Applications

AudienceThis group focuses on the use of lasers in surgery or in other treatments of disease. This includes the use of lasers as surgical tools for tissue cutting, welding, and coagulation, as well as the use of optics to initiate cell-damaging photochemical reactions for the treatment of diseases such as cancer. In addition, optics, spectroscopy, and imaging provide unique tools that may allow real-time diagnostics of the efficacy of clinical procedures. For many of these applications, the development of optical tools for appropriate light delivery, especially for fiber-based or endoscopic delivery to tissues that are not directly accessible, is critical. In addition, this group emphasizes basic science studies of the mechanisms by which light can affect tissue in adverse or therapeutic ways.

Upcoming Webinar

Photobiomodulation for Treatment of Traumatic Brain Injury and Other Brain Disorders

When: 7 October 2020, 11:00 - 12:00 EDT

Register Now

Photobiomodulation is traditionally associated with treatment of various skin conditions, including wound healing. However, in recent years there has been a growing interest in applying this method for treatment of brain disorders. Traumatic brain injury is a common type of head trauma, affecting victims of sports injuries, assaults, injuries suffered in military conflict and road traffic accidents. There is a lack of therapeutic methods for traumatic brain injury, especially those that can be applied non-invasively.

In this webinar hosted by the OSA Therapeutic Laser Applications Technical Group, Michael Hamblin will discuss principles of photobiomodulation (PBM) for treatment of traumatic brain injury. PBM employs red or near-infrared (NIR) light (600-1100nm) from lasers or, in some cases, light emitting diodes to stimulate healing, protect tissue from dying, increase mitochondrial function, improve blood flow, and tissue oxygenation. Results of small animal model studies as well as human studies show that PBM can also act to reduce swelling, increase antioxidants, decrease inflammation, protect against apoptosis, and modulate microglial activation state.

All these mechanisms of action strongly suggest that PBM delivered to the head should be beneficial in cases of both acute and chronic traumatic brain injury. Moreover, PBM has now been shown to be effective against neurodegenerative diseases (Alzheimer's and Parkinson's) and psychiatric disorders (depression, anxiety and opioid addiction). Cognitive enhancement in normal individuals is another application.

What You Will Learn:

  • Therapeutic effects of NIR light treatment on brain tissues
  • Principles and mechanisms of PBM for treatment of traumatic brain injury
  • Applications of PBM to treatment of neurodegenerative diseases and psychiatric disorders

Who Should Attend:

  • Students, scientists, physicians interested in applications of non-invasive light therapies for healing of brain tissues and improving cognitive function in patients with various types of encephalopathies

About the Presenter: Michael R. Hamblin, Harvard Medical School and Wellman Center for Photomedicine at Massachusetts General Hospital

Michael Hamblin is a Principal Investigator at the Wellman Center for Photomedicine at Massachusetts General Hospital, an Associate Professor of Dermatology at Harvard Medical School and a member of the Affiliated Faculty of Harvard-MIT Division of Health Science and Technology. He was trained as a synthetic organic chemist and received his PhD from Trent University in England. His research interests are now broadly in the area of phototherapy for multiple diseases. One focus is the study of new photosensitizers for infections, cancer, and heart disease. A specialty of the Hamblin lab is the development of new animal models for testing PDT approaches. The study of how PDT can activate the host immune system to attack advanced cancer is a new direction in the Hamblin lab. A second focus is low-level light therapy (LLLT) or photobiomodulation for wound healing, arthritis, traumatic brain injury, psychiatric disorders, and hair regrowth. Dr. Hamblin has published over 300 peer-reviewed articles, over 150 conference proceedings, book chapters and international abstracts, and he holds eight patents. He has edited the most recent and comprehensive textbook on PDT entitled "Advances in Photodynamic Therapy: Basic, Translational and Clinical". He also co-edited a book entitled "Photodynamic Inactivation of Microbial Pathogens: Medical and Environmental Applications", an authoritative and comprehensive textbook entitled "Handbook of Photomedicine" with 70 chapters and 800 pages, a textbook entitled "Applications of Nanoscience in Photomedicine" and another comprehensive handbook called "Handbook of Low Level Laser (Light) Therapy".


OSA Technical Groups Best Poster Presentation Award

As part of this year's OSA Biophotonics Congress: Biomedical Optics, the Therapeutic Laser Applications Technical Group joined together with several other OSA Technical Groupsto support an award for the best poster presentation. The award recognized one student and one recent graduate for the work they presented at the virtual conference. Congratulations to our recipients:

OSA Technical Groups Best Poster Presentation Award - Student

Arindam Biswas, University of South Florida, for his presentation on Fast Diffuse Correlation Spectroscopy with a low-cost, fiberless embedded diode laser

OSA Technical Groups Best Poster Presentation Award – Recent Graduate

Lorenzo Cortese, ICFO-The Institute of Photonic Sciences, for his presentation on Effects of Different Hardware and Measurement Parameters on Diffuse Correlation Spectroscopy

On-Demand Therapeutic Laser Applications Webinars

You can watch any of the following webinar presentations, which were hosted by the OSA Therapeutic Laser Applications Technical Group, on-demand.

Elina A Vitol  Chair
David R Busch UT Southwestern Medical Center at DallasAdvisor
Felix Fanjul-Velez University of CantabriaMember
Yannis Mantas Paulus University of MichiganMember

If you are a member of the Therapeutic Laser Applications Technical Group and have ideas for activities and initiatives to help engage this community, please share them with the chair, Elina Vitol.


View OSA Technical Group webinars on-demand at any time or register for any of our upcoming webinars online. Each webinar is an hour long and features a technical presentation on a topic selected by your OSA Technical Groups.

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