In most online stores, all necessary measurements listed for each frame, among which the most important will be the total width, which is the distance measured from left hinge to right.if you have an old eyeglasses, simply make the measurement from left hinge to the right side. Once this measurement matches, the eyeglasses will fit you well. Note +/-5mm is allowed.

Recently I heard that a kind of prescription eyeglasses which called mixed rim eyeglasses, I never see this special kind of eyeglasses before, so I was very interested in it. Someone said that this kind of eyeglasses have body with metal material and arm with plastic material, it makes this kind of frame lighter than metallic frame, and stronger than the plastic rim. If this kind of eyeglasses really exists, could you tell me where I can get them?