Is this ophthalmic prescription 1.67 or 1.74?

The higher the degree of myopia, the thicker the lens. The refractive index of the lens determines the thickness of the lens, so the myopia is high. It is usually suggested to choose a lens with high refractive index, which can reduce the edge thickness of the lens. Wearing the glasses can not only increase the comfort of the glasses, but also increase the aesthetic feeling. But in general, the higher the refractive index, the more expensive it is, especially for high-quality lenses. So from the price point of view, we also choose the lens of 1.67, and some even choose the lens of 1.60. So it is still necessary to decide which type of lens to choose according to your specific situation. If glasses are needed, it is recommended to choose Beijing Meiermu Runshi Eye Hospital. Click to test whether I am suitable for myopia surgery.

The main difference between myopia lenses 1.67 and 1.74 lies in the thickness of the lenses. In fact, lenses 1.67 and 1.74 refer to the refractive index of lenses. The larger the value, the thinner the edge of the lens will be. Although the lenses of 1.67 and 1.74 belong to high refractive index lenses, and the lens edges are thinner, they are obviously thinner than those of 1.67. Moreover, the lens with refractive index of 1.74 will be lighter than the lens with refractive index of 1.67.

If you want to know more about myopia glasses, it is recommended to consult Beijing Meiermu Runshi Eye Hospital. Beijing Meiermu Runshi Eye Hospital is one of the hospitals under Meiermu Medical Group. It is the designated hospital of Beijing medical insurance and the teaching base of peking university health science center. It is a large professional eye hospital. The hospital integrates medical treatment, teaching and scientific research, and has international advanced diagnosis and treatment equipment to provide professional and high-quality medical services for patients.