Does it matter if the glasses are damaged when mailing?

Does it matter if the glasses are damaged when mailing?

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Does it matter if the glasses are damaged when mailing?

Many people think that the frame of glasses is slightly damaged and can be ignored, in their eyes, if the lens is fine, the glasses are OK to use. In the whole process of matching glasses, it is necessary to choose a regular lens organization. The lens should be suitable, and the choice of the frame is very particular. Once the frame is out of shape, it needs to be replaced, and if left unchecked, further damage to the eye is possible.

What are the causes of lens damage?

When the force area of the lens is small, the impact resistance of the lens is worse. When subjected to the impact of external forces, the lens will naturally be squeezed and cause breakage.

In particular, some lenses with low degrees and high refractive index are possible to cause this phenomenon. When the frame fell from a height due to wrong placement, there is a collision between the edge of the lens and the ground or hard objects. It will produce a broken or collapsed edge. In the process of the lens falling from high, the impact force is larger, and the stress point is smaller. When the glasses are falling, the upper edge of the lens, the convex groove of the upper frame, squeezes against the lens. The middle part of the upper half is easy to cause edge collapse. In the process of processing the template, the template is not accurate, so that the glasses side and the frame can not be uniform fusion, and the force of the lens is uneven. It will be easy to lead to greater stress in some parts, resulting in edge collapse.

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Does it matter if the frames are broken?

If the frame is broken, there may be inconsistencies between the left and right temples. This will cause the lens optical center shift, long-term wearing will make teenagers feel dizzy and vomiting. Many people will be attributed to the high degrees of this situation. The position of the nose pads is not consistent: this kind of lens deviation from the left to the right causes the prism effect, which makes the wearer can not see clearly, blurred. When the temple is too loose or too tight, it will affect the comfort of wearing the glasses, and the excessive pressure on the temple will cause pain in the head.

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