What is the formula used to calculate fluence in laser treatments?

Fluence in laser treatments is defined as the energy delivered per unit area, and it is typically measured in joules per square centimeter (J/cm²). This measurement is crucial in laser applications because it indicates the amount of energy the skin is receiving during a treatment session, directly influencing the effectiveness and safety of the procedure.

The correct option refers to joules being associated with the measurement of energy per square centimeter, which aligns perfectly with the definition of fluence. Understanding this concept helps practitioners determine the appropriate energy level for different treatments, ensuring they can achieve the desired effects without causing damage to surrounding tissues.