Do you know what the numbers marked on the inside of the glasses mean?

When you look at the inside of the glasses or sunglasses you usually wear without thinking, you may see a list of numbers that are unfamiliar to you. If you know the meaning of these numbers, you will be able to select eyeglasses more smoothly.

What do the numbers on the inside of the glasses mean…
Zu verzende sizinstellung!

The numbers on the back of the temples are actually eyewear-specific size markings. The first two digits indicate the width of the lens, the next number indicates the length of the bridge, and the last number indicates the length of the temples. While the length of the temples is generally not a concern, the lens width and bridge length should be checked carefully, as one of the criteria for eyewear to look good is that the black eye should be in the center of the lens. This is a point to be checked carefully. In particular, many Japanese people have wide faces, so it is a standard rule to calculate the width of the frame by “lens width x 2 + bridge length,” and select eyewear that is appropriate for one’s face size. Remembering the size will also help you when you purchase eyeglasses on the Internet.

Incidentally, wearing ill-fitting spectacles may cause pain due to tightness or misalignment, and in the case of prescription lenses, it may worsen vision because the field of vision is not fixed. Be aware that the wrong size glasses, although they are a vision correction device, can have a negative impact on your vision.

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