Check the size of the original frame to be worn, and select the one whose size is close to the width of the frame to check the size of the original Clear Eyeglasses, which is generally marked in the inner measurement of the lens leg. If the size of the original frame is appropriate, try to choose a similar size, 1-2 mm difference is no impact (the same material).
Directly measure the total front width of the original frame, select the one whose size is close to “total front width”. If the data of the frame in the first method has been worn out, it is recommended that you use a ruler to measure the comfortable glasses you used to wear and record the total front width of the frame. The difference of the front width of the frame within 4mm has no effect (this method is applicable to all Clear Frame Glasses).
- Frame size: the distance between the inner sides of the mirror ring at the midpoint of the plane vertical line where the frame is located. There are generally two methods of measurement, the box method and the baseline method, generally 33– 60mm.
- Size of nose bridge: the widest distance on the horizontal line of the nose bridge of the Cateye Eyeglasses lens frame. Generally 13– 22mm.
3, mirror leg size: from the center of the mirror frame hinge to the end of the straight distance of the mirror leg, generally 125– 156mm.
- Frame height: the widest distance between the upper and lower edges of the Cat Eye Frames frame.
5, frame width: the distance between the visible area on the left and right sides of the frame, that is, the distance between the frame and the junction of the two mirror legs. According to the analysis of the proportion between the size of the face and the size of the frame, the outer width of the frame below 128mm is classified as small size, 129mm to 138mm as medium size, and 139mm above is classified as large size.
- Inner width of the frame: the distance inside the legs of the two mirrors at 60mm after the mirror circle plane. This is exactly the contact point between the mirror leg and the human temple. If this point is too tight or too loose, it will affect the comfort of wearing. At the same time, the width of the frame will change with the adjustment of the mirror leg.
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