In laser therapy, what does "fluence" refer to?

Fluence in laser therapy is defined as the energy per unit area delivered by the laser beam to the tissue. It is typically measured in joules per square centimeter (J/cm²). Understanding fluence is essential because it directly relates to the efficiency and effectiveness of the laser treatment. Higher fluence can mean more energy is delivered, which may be necessary for certain therapeutic effects, but it must also be balanced to avoid damaging the surrounding tissue.

This focus on energy density is crucial in determining how the body will react to the laser treatment. Each application may require a specific fluence based on the clinical goals, the type of tissue being treated, and the intended depth of penetration. This highlights the importance of accurate fluence settings for optimizing outcomes in laser therapies.