Glasses EYEGLASSES in metal with anti-reflective hardening treatment. HARDENING TREATMENT The hardening treatment, indicated with the acronym H, is applied to the surface of organic lenses in order to improve their resistance to abrasion and preserve their properties for longer over time. ANTI-REFLECTIVE TREATMENT The hardening treatment is usually combined with the anti-reflective treatment (HMC). This treatment is carried out on a lens in order to reduce the disturbing images that are formed by reflection from its surfaces. It is used to obtain better image definition and attenuate reflected images. This treatment is always advisable, 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.
