1. Mirror adjustment
(1) After the plate frame of plastic frame is heated by a heater, adjust it by hand. Keep the surfaces of the left and right rearview mirrors relatively flat.
2. Adjustment of nasal bracket
(1) Adjust the left and right nose pads symmetrically with round nose pliers.
(2) Adjust the stipules with the stipule pliers to make the left and right stipules symmetrical.
3. Adjustment of temples
(1) Use flat pliers and temple leg pliers, so that the positions of the mirror body and temple leg are consistent from left to right, and the inclination angle deviation of the left and right temple legs is less than 2.5.
(2) Bend the head of the temple with temple pliers, so that the opening angle of the temple is 80 ~ 95 (measured with a protractor), and the left and right temples are symmetrical.
(3) The two temples are open and prostrate on the table, and the upper edges of the left and right mirror rings and the upper ends of the temples are in contact with the table, which can be achieved by adjusting the inclination of the mirror body.
(4) The two temples are laid flat on the desktop, and the bottoms of the left and right temples and the back ends of the temples are in contact with the desktop. This can be achieved by adjusting the inclination and curvature of the temples.
(5) The two temples are spread out and prostrate on the table, and the upper edges of the left and right mirror rings and the upper ends of the temples are in contact with the table, which can be achieved by adjusting the inclination of the mirror body.
4. Temple leg adjustment
(1) The left and right temples are folded in half, and the temples touch the lower edge of the mirror ring, which is almost the same.
(2) Adjust the straightness of the temples, so that the temples are basically stable after being folded and placed on the desktop, and the left and right sides are roughly the same when facing upwards. It can be achieved by adjusting the straightness or curvature of the temples.
Therefore, myopia glasses are crooked, so it is best not to adjust them casually. Find a professional optical shop and let a professional optician adjust it, because poor adjustment may affect your eyesight or lead to poor adjustment.