What is the difference between dozens of sunglasses and hundreds of sunglasses?
Sunglasses are really useful things. Even people with average looks will immediately improve their temperament after wearing sunglasses. They are cool no matter how they look! However, there are too many styles and brands of sunglasses, ranging from dozens of dollars to hundreds of dollars.
Someone may ask, although inferior sunglasses are cheaper, they are better than not wearing them, right? wrong! If the quality of sunglasses is not up to standard, it is better not to wear them. There are two reasons:
1. Permanently hurt the eyes
Wearing sunglasses, the light becomes darker, so people's pupils will increase, but because your sunglasses can't block ultraviolet rays, it means that a large amount of ultraviolet rays are ingested into enlarged pupils, which hurts the eyes more than not wearing them! Moreover, the damage of ultraviolet rays to the eyes is cumulative and irreversible.
What is the difference between dozens of sunglasses and hundreds of sunglasses?
2. Harm eyesight
This is mainly a matter of workmanship. General glasses, whether it is sunglasses or other glasses, have a reasonable design of optical indicators, including sphericity, prism, etc. If the design is unreasonable, it is easy to see the object deformed, causing double fatigue of the eyes, and vision loss in the long term.
Good sunglasses are functionally able to prevent ultraviolet rays; optically reduce visual distortion and protect eyesight; comfortable and sturdy to wear, as well as tall design and brand power, so a large number of people are willing to pay a high price!
