Abstract: An eyeglass assembly having a left frame part, a right frame part and a nosepiece which joins the left and right frame parts together and is adapted to rest on the bridge of a nose. A saddle detachably secures the nosepiece to the frame parts and, in doing so, simultaneously locks the left and right lenses to the eyeglass assembly. In addition, the nosepiece is preferably constructed with varying lateral widths and vertical heights in order to accommodate different pupillary distances and pupillary vertical orientations for different persons.