The present invention utilizes a hand piece featuring a laser device which is used in the irradiation of damaged cells to stimulate photoreceptors within a cell, initiating a cascade of intracellular metabolic reactions that move the cell toward homeostasis. As the cell approaches homeostasis there occur a number of secondary effects of photo stimulation which contribute to homeostatic cellular metabolism of adjacent cells. Concurrent photo stimulation of the maximal three dimensional volume of cells along with the secondary effects of the cellular metabolic homeostasis achieved in these cells results in a resolution of metabolic deficits within cells far in excess of the effects of direct photo stimulation. The current invention offers an effective method of irradiation of large numbers of cells with safe levels of optical energy to initiate the intracellular cascade toward homeostasis and the production of secondary effects contributing to homeostasis of adjacent or distant cells.