How well does your ruby laser work?

The safe and effective use of cutaneous lasers is dependent upon the selection of a clinically appropriate laser energy level. Therefore, the accuracy of the stated laser output is critical. The energy output of an Aesculap ruby laser was recorded at the start of every clinical session over a 704-day period using an external energy meter. Regular review of these records enabled trends of energy output to be recognised and appropriate action to be taken prior to adverse clinical sequelae. This monitoring procedure is a quick and inexpensive method of improving quality control in the use of medical lasers.