This paper reports that the acupuncture points of 32 teen-agers (64 eyes) with myopia were irradiated with low power He-Ne lasers. Observations on the change of their visions and refractions before and after treatment were made. The results show that clinically the laser did have a good therapeutic effect with a rate of 90.63%. It was found that there was notable improvement in their brain circulation. And initial study of the mechanism of He-Ne laser therapeutic effect was made.