it is based on the "adjustment theory" of optometry, the design principle of progressive multifocal glasses add and cover telescope, and the magnification effect of convex lens.
adjusting compensation glasses is to add +100 to +300 degrees of convex lens to you when the eye looks close, replacing the refractive power of the lens, that is, the lens uses less +100 to +300 degrees of refractive power it can ensure that you can see closely and clearly, and reduce the tension of the eye muscles, coupled with the magnification of the convex lens, so the font is enlarged, the sight is clearer, and the eyes are not tired. the optical correction mirror is the main mirror, and a convex lens is added to the outside as a technical means of magnifying and adjusting compensation to form a pair of combined glasses to meet the needs of near sight operation it can reduce the adjustment force of the eye vision (looking close) or adjust compensation and relieve eye fatigue.