Glasses with length-adjustable temples, by which the length of temples can be easily adjusted according to physical conditions of a user, comprises: a main body (1) including lenses (2); a pair of temples (10), each of which having a hook (12) curvedly formed at a rear end thereof for hanging on an ear of a wearer and a screw hole (11) formed at a front end thereof; a pair of guide body parts (20) with a predetermined length, each of which fitted onto each of the temples (10); a pair of control screws (30) provided into the respective guide body parts (20), each of the control screws (30) having a screw part (31) in its rear part and a control part (32) in its front part, so that the screw part (31) can be coupled to the screw hole (11) of the temple (10) and the control part (32) can move the temple (10) to-and-fro; a pair of hinge elements (40), each of which mounted outside of a front end of the guide body part (20) to foldably connect the temple (10) to the main body (1); and a pair of rotation guide elements (50) for guiding the control screws (30) to rotate in right positions and move the temples (10) to-and-fro.
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