Decoding Signs on Glasses Frames and Understanding the Adaptation Period for New Glasses
The newly equipped glasses have a one-week adaptation period to the eyes. Just like the new shoes and feet have a running-in period. Especially the visual process of the eye is not only the physical role of the eye’s refraction. But also the psychological factors involved. To give a common example: some people have deformed old eyeglass frames. The frames with different heights on both sides, and corrected vision of only 0.6. The newly equipped glasses correct vision 1.0 and are comfortable to wear. But he always feels that the new glasses are not as comfortable as the old glasses. Especially for people with large changes in power or astigmatism. And especially for older people. What is the reason?
Because people’s acceptance of glasses correction is not only due to physical factors. Such as the accuracy and inaccuracy of lenses. But also the participation of psychological factors. The eyes have become accustomed to unevenness, old glasses and to the unclear images. Once corrected now, it is clear, but our eyes always feel a little dizzy, swaying, but we feel not used to it.
But as long as the optometry and processing are correct. After a week or more of adaptation, it will be slowly accepted psychologically. If your eyes still feel uncomfortable after being used for more than 1 week. Then you should go to the optical shop to check. Whether the optometry is correct. And whether the lens power or axis position are processed correctly. If the gap is too large, it needs to be reallocated.
Spectacle frames produced by factories have some signs on the side or nose brackets.
（1）Brand identity
The name is expressed in letters, and the imported rack also has the name of the place of origin.
（2）Frame size identification
For example, labeled 48-17-135. 48 represents the size of the frame. 17 represents the size of the nose (the distance between the nose pads). And 135 represents the length of the temple (the unit is mm). The role of these signs is to help the optician choose the frame that matches his pupil distance and face size.
（3）Material identification
If it is a pure titanium frame. It is marked with “Ti-P TITAN”. It means that except for the nose bracket, hinge and screws, the others are made of titanium. Marked with “TL-C”, it means part of the frame is made of titanium.
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