New study shows scientific benefit of laser therapy


Low-level laser therapy (LLLT) is a form of light therapy that triggers biochemical changes within cells. Photons are absorbed by cellular photoreceptors, triggering chemical alterations and potential biochemical benefits to the human body. LLLT has been used in pain management for years and is also known as cold laser therapy, which uses low-frequency continuous laser of typically 600 to 1000 nm wavelength for pain reduction and healing stimulation. Many studies have demonstrated analgesic and anti-inflammatory effects provided by photobiomodulation in both experimental and clinical trials.


The purpose of this research article was to present a summary of the possible pain management benefits of LLLT.


In cold laser therapy, coherent light of wavelength 600 to 1000 nm is applied to an area of concern with hope for photo-stimulating the tissues in a way that promotes and accelerates healing. This is evidenced by the similarity in absorption spectra between oxidized cytochrome c oxidase and action spectra from biological responses to light. LLLT, using the properties of coherent light, has been seen to produce pain relief and fibroblastic regeneration in clinical trials and laboratory experiments. LLLT has also been seen to significantly reduce pain in the acute setting; it is proposed that LLLT is able to reduce pain by lowering the level of biochemical markers and oxidative stress, and the formation of edema and hemorrhage. Many studies have demonstrated analgesic and anti-inflammatory effects provided by photobiomodulation in both experimental and clinical trials.


Based on current research, the utilization of LLLT for pain management and osteoarthritic conditions may be a complementary strategy used in clinical practice to provide symptom management for patients suffering from osteoarthritis and chronic pain.

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K-Laser Class 4 Laser therapy treatments are available here to help you recover from a variety of ailments. This video explains the mechanism behind K-Laser class 4 laser therapy treatments. Ask us how K-Laser class 4 laser therapy treatments can help you. 

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Dr. Aaron Williams DC
Greensboro Laser Therapy | Pain and Laser Centers of NC | (336) 790-2649

3831 W Market St
Greensboro, NC 27407

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K-Laser class 4 laser therapy treatments are available at our clinic to help you recover from a variety of ailments.



See how Steve Donohue, Assistant Athletic Trainer of the New York Yankees uses laser therapy to treat player injuries.


Meet the Team

Learn Who We Are

  • Dr.
    Aaron Williams
    DC, LIFE University

    Dr. Williams fractured his back at the age of 12 years old due to a ATV accident while living on his family farm in Iowa. Today, he continues to live with a non-healing fracture (Grade 2 Spondylolisthesis) of the L5 vertebrae without surgery largely due to the results of the class IV laser therapy he received himself. Seeing how the class IV laser therapy helped him continue to be healthy, extremely physically active and pain free without surgery, Dr. Williams started studying how cold laser could help his patients more effectively than just the use of class IV laser. He found that the lack of oxygen in our bodies as we age was a big factor in the tissue death (soft tissue nerves etc.). Due to this finding oxygen related techniques are used to improve the results a patient needs when dealing with long term neuropathy, disc herniations, meniscus damage and overall soft tissue damage from past surgeries. He created the LASERA technique and has had such amazing success reducing patients pain and dysfunction that he wants to 'shout from the tree tops.'

  • Dr.
    Lee Stafford
    DC, LIFE University

    I am originally a native of Greensboro, North Carolina. I attended Wesleyan Christian Academy in High Point. I completed my undergraduate degree in Exercise Science at the University of North Carolina at Charlotte.

    Playing sports all your life and into the collegiate level can really take a toll on your body. My goal is to help you stay balanced so you are also able to continue to do what you enjoy and love! 

    In my free time I love to exercise and play soccer. Exercise is important in maintaining a state of health and well-being as well as proper nutrition, and getting adjusted. I also enjoy spending my free time walking in local parks and mountain trails with my wife and son!

Read Our Reviews

I had back surgery in 2011. I come in the office and get the laser treatment and love it. For me it really helps with the soft tissue giving much needed relief. It feels good and it’s effective- Highly recommended!

Ronald H.

Great Place!!! Friendly and caring staff. Was having disk pain that was impacting my nerves and legs. Aileen does a great job applying the laser treatments. Started receiving treatments with the last two weeks and the majority of the pain is gone.

Kimberly C.

Found them because of extreme pain in my hip. Turned out I had 2 vertebrae turned and disks compressed. They are getting it fixed. Pain is gone.Love the staff. Victoria and Aileen take great care and make me feel very welcome every time.

John R.

P and L Center doctors and staff are knowledgeable, friendly and caring. They listen and, having heard, respond to concerns to customize treatment to meet my individual needs. With these professionals as partners, I find myself increasingly hopeful that I will be able to more successfully manage my health issues and improve the quality of my life.

Mike R.

I definitely recommend the lasera treatment! The doctor knows what she is doing is very helpful to the clients. The whole staff at the center is very friendly and goes beyond the call of duty to make clients comfortable!

Malinda P.

The staff are all friendly and knowledgeable. I had pain in my SI joint and low back. I have had great results and recommend anyone with pain to try!

Letisha A.

PAIN AND LASER CENTER in Greensboro N.C. on West Market Street is an awesome place for any type of pain. The people that work there are professional, nice, and gentle. The office is very organized and ran very professional. Each person that comes there is important to all the staff and the Doctors. The staff and the Doctors greets you every time by name. It truly is a place to heal and get rid of your pain.

Robin R.

I started this treatment and could barely walk into the office. I was in bad shape from messing my lower back up. It’s been 1.5 weeks and I’m 1000% better. In another week I should be as good as new or better!! Loved it!

Carla T.

I have truly enjoyed getting to know all the professionals at my Pain and Laser Center in Greensboro. From the first day I came in everyone remembered my name and the attention was remarkable. The nurses are the best!

Cynthia L.

Friendly and knowledgeable staff - Aileen the laser technician is wonderful as is Dr. Williams. I came here in September with debilitating pain from an existing condition worsened by a slip and fall. The treatment plan designed for me has effectively, and happily, got me back to 100%. I highly recommend this center!

Jayne C.

Hi, I was unfortunately involved in a car accident. My wife ask some friends for recommendations and the pain and laser center came highly recommended. I also visited my primary care the day after the accident and they also recommended pain and laser center. I had never been to a chiropractor. My primary care called and they opened a spot for me to come the same day. I have to say I was a bit skeptical at first but after a few visits and adjustments I am now a believer. I have made steady progress over the past 3 weeks. The treatments are great. This office has a very nice, modern, clean and relaxing atmosphere. The professional staff is wonderfully positive. I highly recommend this place of business if you have been in an accident or maybe have issues with pain in your back. Special thanks to Dr. Stafford.

Everette S.

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