Metal eyeglasses with blue control anti-reflective hardening treatment
HARDENING TREATMENT
The hardening treatment, indicated with the initials H, is applied to the surface of organic lenses in order to improve their resistance to abrasion and preserve their properties for a longer time.
ANTI-REFLECTIVE TREATMENT
The hardening treatment is usually combined with the anti-reflective one (HMC). This treatment is carried out on a lens in order to reduce the disturbing images that are transformed by reflection from its surfaces. It is used to obtain a better definition of the image and to attenuate the reflected images.This treatment is always recommended, especially in cases of night driving to avoid the annoyance of lights, street lamps and illuminated signs, for wearers of lenses with high prismatic powers or for video terminal operators.
Furthermore, these lenses are equipped with blue control treatment for those who often use digital devices