What is the difference between a laser and a led?
A laser is a very precise and intense source of a specific color of light. They are generally quite expensive and delicate instruments costing as much as $100,000-$500,000 and require special eye protection for the patient and physician. LEDs by comparison are increasing in intensity while their cost is diminishing and do not require the eye precautions of lasers. Fortunately, in many studies the efficacy of the therapy using LEDs versus LASER is similar so the future seems to favor the use of LEDs.
