Devices and methods are provided for indicating treatment efficiency by illuminating a signal onto surrounding tissue. The signal may be dynamic and is configured to indicate specific parameters of the treatment, the device and the patient. Various signal features may denote different parameters. Devices and methods are provided for maintaining a fiber tip effective throughout a treatment procedure by regenerating or replacing the tip. Devices and methods are provided for controlling emission from bended fibers. Cordless configurations of laser treatment devices are also provided.
