Abstract: An eyeglass frame that allows the lenses to be changed including a front and temples, the front including two rims, a nose engagement seat between the rims, two side retaining seats disposed at both sides of the front respectively, and a slide block for coupling to the nose engagement seat. The nose engagement seat has an outwardly projecting block on its outer surface. The slide block is formed with a grove shaped to match the projecting block such that it may slid over the projecting block to be coupled thereto and cover parts of the rims. The side retain seats are formed with curved grooves for the lenses. The projecting block of the nose engagement seat and the groove of the slide block are interchangeable. Besides, the nose engagement seat may be replaced by a securing seat having retaining grooves at both lateral sides thereof, and two side slide blocks are provided near both ends of the front respectively.