Normalized standard deviation transition based dosimetry monitoring for laser treatment

An apparatus for normalized standard deviation transition based dosimetry monitoring of a laser treatment, the apparatus comprising:

• a detector configured to:
• detect a plurality of responses from a treatment area upon application of a plurality of laser pulses to the treatment area as part of the laser treatment;
• and
• derive a plurality of response signals from the plurality of responses corresponding to the plurality of laser pulses directed to the treatment area;
• and a processor coupled to the detector, the processor configured to:
• determine a standard deviation from each response signal following a receipt of each of the plurality of response signals;
• following the receipt of each response signal, derive a normalized standard deviation by dividing the standard deviation by an arithmetic mean of each of the plurality of response signals;
• and
• determine a number of laser pulses remaining to complete the laser treatment following the receipt of each response signal based on the normalized standard deviation.

A laser treatment system for normalized standard deviation transition based dosimetry monitoring, the system comprising:

• a laser source configured to:
• direct a plurality of laser pulses to a treatment area as part of a laser treatment;
• a detector configured to:
• detect a plurality of responses from the treatment area upon application of the plurality of laser pulses to the treatment area;
• and
• derive a plurality of response signals from the plurality of responses corresponding to the plurality of laser pulses directed to the treatment area;
• and
• an estimator coupled to the detector, the estimator configured to:
• determine a standard deviation from each response signal following a receipt of each of the plurality of response signals;
• following the receipt of each response signal, derive a normalized standard deviation by dividing the standard deviation by an arithmetic mean of each of the plurality of response signals;
• and
• determine a number of laser pulses remaining to complete the laser treatment for each response signal based on the normalized standard deviation following the receipt of each response signal.