If you have blurred vision, you need to go to the hospital for regular medical optometry. There are essential differences between medical optometry and optometrist optometry. Because optometrists have no medical qualification, they can only do routine optometry. The purpose is only to let ametropia patients see the object clearly, and the examination method and optometry equipment are relatively simple. Hospital optometry is medical optometry, which is relatively complicated and requires higher optometrists and optometry equipment.
The degree of spectacle lens is 1 at 25 degrees, that is, the degree of lens is an integer multiple of 25 degrees, that is, 50 degrees, 75 degrees, 100 degrees, 125 degrees, etc.
People's glasses have the same degree, but their eyes have slightly different abilities. The general optician's procedure is to determine the degree of the eyes first, then choose the glasses frame that suits him, and then choose the glasses after selecting the glasses frame. After processing, the lens is installed on the spectacle frame, and a complete pair of glasses is completed.
Titanium alloy frame is a special alloy, and the ultra-light and super-elastic frame can be made very thin. Because the alloy of titanium with rare metals such as cobalt and chromium is very stable, it will not cause skin allergy, and it will be more developed and popularized in the next few decades.
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