Laser therapy, also known as photo therapy, is a modality using light energy to enhance tissue healing, pain control and stimulation of the vascular, immune and lymphatic systems. When laser light interacts with tissue, it causes certain photochemical reactions to occur which help control pain and accelerate healing. Laser therapy has been proven particularly effective for certain conditions including arthritis, tendonitis, repetitive stress injuries, carpal tunnel syndrome, neck and lower back pain and migraine headaches.