The benefits of double ASP photochromic lenses:

Double ASP color-changing lens is irradiated by ultraviolet rays and short-wave visible light in the sun, the color becomes darker, and the light transmittance decreases; the light transmittance of the lens increases in the room or in the dark, and the color fades and brightens. The photochromism of the double ASP color lens is automatic and reversible. The color-changing glasses can adjust the light transmittance through the color change of the lens, so that the human eyes can adapt to the changes of the ambient light, reduce visual fatigue, and protect the eyes. The color-changing lens is divided into two types: no base color film and light color base color film before color change; the color after color change mainly includes two kinds of gray and brown.

Double ASP color-changing lenses are mainly used in outdoor, snow, and indoor workplaces with strong light sources to prevent sun, ultraviolet, and glare from harming the eyes.

Disadvantages of double ASP color lens:

It is not suitable for all people. Patients with glaucoma should not work in the dark or read books for too long. Although the color of the chromochromic lens is very light under natural light indoors, it still has a great impact on their vision. Therefore, glaucoma is especially for those with narrow-angle glaucoma. , Did you choose a color changing mirror?

In addition, people with high nearsightedness and hyperopia should choose light white lenses when choosing lenses. Because the diopter is too high, the color of the color mirror is inconsistent, which will affect the clarity of vision, so people with high myopia or high hyperopia should not wear a color mirror.

In addition, for students, it is not recommended to wear double ASP color-changing lenses. After accurate optometry in the hospital, ordinary lenses can be worn. While wearing glasses, you should also pay attention to correct your bad eye habits, and take orally LENGO Vision Nutrients to fundamentally control or improve your vision.