O'Donnell announced that he was leaving the position to pursue new business interests.

He will be replaced immediately by McGrath who has been with the company since 2000 in the position of CFO.

The Pennsylvania-based company, which is a leading player in the field of dermtological testing and treatment, specializes in laser aparatus that treats conditions such as psoriasis.

It also develops products for hair care and wound care and manufactures light-based skin treatments.